Adam, E.K., Chyu, L., Hoyt, L.T., Doane, L.D., Boisjoly, J., Duncan, P.G.J., Chase-Lansdale, L., and Macdade W.T. (2011). Adverse Adolescent Relationship Histories and Young Adult Health: Cumulative Effects of Loneliness, Low Parental Support, Relationship Instability, Intimate Partner Violence, and Loss. Journal of Adolescent Health, 49, 278–286.
Ahadi, B. (2009). Relationship between loneliness and self-esteem with attachment styles of students. Journal of Psychological Studies, 5(1), 95-112. (In Persian).
Ahadi, H, and Jomehri, F. (2006). Development Psychology adolescence, adulthood (early, middle, Late). Tehran: Bonyad publishing. (The original book was published in 1998). (In Persian).
Bahramiyan, J. (2014). The role of spiritual health in reducing loneliness. The first conference of Nursing, Psychology, Health Promotion and Healthy Environment. Hamadan University, Shahid Mofateh Faculty. (1-9). (In Persian).
Bayrami, M. and Mohebbi, M. (2016). Relationship between Attachment to Parents and Perception of Conflict between Parents with Social Anxiety Disorder in Female Students: The Mediating Role of Emotion-Oriented Coping strategy. Journal of Clinical Psychology, 1(29), 71-82. (In Persian).
Baker, O.E., Bugay, A. (2011). Peer Victimization and Depressive Symptoms: The Mediation Role of Loneliness. Social and behavioral science, 30, 1303-1307.
Berk, L. (2007). Development through the Life span (VII). Translated by Seyed Mohamadi (2014). Tehran: Arasbaran. Twenty-fifth edition. (In Persian).
Brewer, G., & Kerslake, J. (2015). Cyberbullying, self-esteem, empathy, and loneliness. Computers in Human Behavior, 48, 255–260.
Cacioppo, J. T., Cacioppo, S., Cole, S. W., Capitanio, J. P., Goossens, L., & Boomsma, D. I. (2015). Loneliness across phylogeny and a call for animal models. Perspectives on Psychological Science, 10, 202–212.
Corsano, P., Musetti, A., Caricati, L. and Magnani, B. (2017). Keeping secrets from friends: Exploring the effects of friendship quality, loneliness, and self-esteem on secrecy. Journal of Adolescence, 58, 24-32.
Crone, E. A., & Dahl, R. E. (2012). Understanding adolescence as a period of social-affective engagement and goal flexibility. Nature Reviews Neuroscience, 13, 636–650.
Cavanaugh, A. M., and Buehler, C. (2016). Adolescent loneliness and social anxiety: The role of multiple sources of support. Journal of Social and Personal Relationships, 33(2), 149–170.
Dehshiri, Gh. R., Borjali, A., Habibi Askarabadi, M. (2008). Development and Validation of the Loneliness Scale among the University Students. Journal of Psychology, 12, 282-296.
Galanaki, E. P. (2004). Are children able to distinguish among the concepts of aloneness, loneliness, and solitude? International Journal of Behavioral Development, 28(5), 435–443.
Gall, M., Borg, W.R & Gall, J.P (1996). Quantitative and qualitative research methods in educational sciences and psychology (VII). Translated by Nasr and et al. (In Persian).
Johnson, H. D., Lavoie, J., & Mahoney. M. (2001). Inter parental Conflict and Family Cohesion Predictors of Loneliness, Social Anxiety, and Social Avoidance in Late Adolescence. Journal of Adolescent Research, (16) 3, 304-318.
King, R.N., and Datu, J. A (2017). Happy classes make happy students: Classmates' well-being predicts individual student well-being. Journal of School Psychology, 65, 116–128.
Lafontana, K. M., & Cillessen, A. H. N. (2009). Developmental changes in the priority of perceived status across childhood and adolescence. Social Development, 19, 130–147.
Lotfabadi, H. (2011). Developmental psychology (2) adolescense, youth and adulthood. Tehran: The Organization for Research and Composing University Textbook in the Humanities. (SAMT). (The original book was published in 1999). (In Persian).
Lykes, V., and Kemmelmeier, M. (2014). What Predicts Loneliness? Cultural Difference between Individualistic and Collectivistic Societies in Europe. .Journal of Cross-Cultural Psychology, 45(3), 468–490.
Naderi, H., Firouz zade pasha, N and Kargar, F. (2016). The Relationship between the Attachment Style, Self-Conception, and Loneliness among High School Students. Journal of Psychology and Psychiatry, 3(2), 1-10.
Mirdarikvand, F. (1999). Investigating loneliness with academic performance, anxiety, depression and self-esteem in boy's school students in Poldokhtar. Master thesis of Shahid Chamran University of Ahvaz. (In Persian).
Najafi, M., Salehin, M.A., and Mohamadyfar. M.A. (2016). The effect of Self Esteem, Humorous Styles and Shyness on the Feeling of Loneliness in Students. New Thoughts on Education Faculty of Education and Psychology. 12(3), 59- 77. (In Persian).
Pasha, Gh. and Ismaili, S. (2007). The comparision of anxiety, self –assertiveness, loneliness and academic performance in normal students and students with semi family in Khoozestsn. New Results in Psychology, 1(4), 22-35. (In Persian).
Putarek, V., and Kerestes, G. (2016). Self-perceived popularity in early adolescence: Accuracy, associations with loneliness, and gender differences. Journal of Social and Personal Relationships, 33(2), 257-274.
Peplau, L.A., Perlman. (1985). Loneliness Research: Basic Concepts and Findings. Social Support: Theory, Research and Application, 269-286.
Qualter, P., Vanhalst, J., Harris, R., Van Roekel, E., Lodder, G., Bangee, M., Maes, M., and Verhagen, M. (2015). Loneliness across Life Span. Perspectives on Psychological Science, 10(2), 250–264.
Rahimzade, S., Pour Etemad, H.R., Sheikhi, M., Asgari, A and Hojjat, M.R. (2011). Conceptual basics of loneliness: A Qualitative Study. Developmental Psychology: Iranian Psychologists, 8(30), 123-141. (In Persian).
Renna, F., Grafova, I.B., and Thakur, N. (2008). The effect of friends on adolescent body weight. Economics and Human Biology, 6, 377–387.
Shariyati, M., Fazilat pour, M and Hosseinchari, M. (2016). Mediating role of social self-efficacy in relation between attachment to peer group and parents with loneliness in high school students. Journal of Educatoin and Learning, 8(1), 27-49. (In Persian).
Tong, Sze Sze. (2013). the relationship between early attachment and adolescent risky behaviors with changes in loneliness in a mediating Role. Electronic Theses and Dissertations. Paper 1449. University of Louisville.
Vnder Zanden, J.W. (2001). Developmental psychology (1 & 2). Translated by Ganji, H. (2011). (Rev. 2) Tehran: Savalan Publishing Institute. (The original book was published in 2007). (In Persian).
Vanhalset, H., Luyckx, K., and Goosens, L. (2014). Experiencing Loneliness in adolescence: A matter of individual characterstic, negative peer experiences, or both? Social Development, 23, 100-118.
VanRoekel, E., ،Ha, T., Verhagen, M., Kuntsche, E., Scholte, R.H.J., Engels, R.C.M.E. (2015). Social stress in early adolescents' daily lives: Associations with affect and loneliness. Journal of Adolescence, 45, 274-283.
vanRoekel, E., Scholte, R. H. J. ., Engels, R. C. M. E. ., Goossens, L., and Verhagen, M . (2015). Loneliness in the Daily Lives of Adolescents: An Experience Sampling Study Examining the Effects of Social Contexts. Journal of Early Adolescenc. 35(7), 905–930.
Williamson, G. N., Molina B, L. (2012). Normal development: Infancy, childhood, and adolescence. In Rey JM (Ed), IACAPAP e-Textbook of Child and Adolescent Mental Health. Geneva: International Association for Child and Adolescent Psychiatry and Allied Professions.
Zhang, B., GAO, Q., Fokkema, M., Alterman, V., & Liu, Q. (2015). Adolescent interpersonal relationships, social support and loneliness in high schools: Mediation effect and gender Differences. Social Science Research, 53, 104–117.
Zhang, W., Zou, H., Wang, M., &Finy, M. S. (2015). The role of the Dark Triad traits and two constructs of emotional intelligence on loneliness in adolescents. Personality and Individual Difference. 75, 74–79.
Zimmer-Gembeck, M. J., Hunter, T. A., & Pronk, R. (2007). A model of behaviors, peer relations and depression: Perceived social acceptance as a mediator and the divergence of perceptions. Journal of Social and Clinical Psychology, 26, 273–302.