1. Bansal, K. and Sharma, K.K. Parameter uniform numerical scheme for time dependent singularly perturbed convection-diffusion-reaction problems with general shift arguments, Numer. Algorithms, 75(1) (2017) 113–145.
2. Chandru, M., Prabha, T. and Shanthi, V. A hybrid difference scheme for a second-order singularly perturbed reaction-diffusion problem with nonsmooth data, Int. J. Appl. Comput. Math. 1(1) (2015) 87–100.
3. Chandru, M. and Shanthi, V. Fitted mesh method for singularly perturbed robin type boundary value problem with discontinuous source term, Int. J. Appl. Comput. Math. 1(3) (2015) 491–501.
4. Chin, R.C.Y. and Krasny, R. A hybrid asymptotic-finite element method for stiff two-point boundary value problems, SIAM J. Sci. Statist. Comput. 4(2)2 (1983) 229–243.
5. Debela, H.G. and Duressa, G.F. Uniformly Convergent Numerical Method for Singularly Perturbed Convection-Diffusion Type Problems with Non local Boundary Condition, Int. J. Numer. Methods Fluids. 92 (2020) 1914–1926.
6. Doolan, E.P., Miller, J.J.H. and Schilders, W.H.A. Uniform numerical methods for problems with initial and boundary layers, Boole Press, 1980.
7. Duressa, G.F. and Debela, H.G. Numerical solution of singularly perturbed differential difference equations with mixed parameters, Journal of Math ematical Modeling, (2021), 1–15.
8. Farrell, P.A., Miller, J.J.H., O’Riordan, E. and Shishkin, G.I. Singularly perturbed differential equations with discontinuous source terms: In Proceedings of Analytical and Numerical Methods for Convection-Dominated and Singularly Perturbed Problems, Lozenetz, Bulgaria, (1998) 23–32.
9. Farrell, P.A., Hegarty, A.F., Miller, J.J.H., O’Riordan, E. and Shishkin, G.I. Singularly perturbed convection-diffusion problems with boundary and weak interior layers, J. Comput. Appl. Math. 166(1) (2004) 133–151.
10. Farrell, P.A., Hegarty, A.F., Miller, J.J.H., O’Riordan, E. and Shishkin, G.I. Global maximum norm parameter-uniform numerical method for a singularly perturbed convection-diffusion problem with discontinuous con vection coefficient, Mathematical and Computer Modelling, 40(11-12) (2004) 1375–1392.
11. Mickens, R.E. Advances in the applications of nonstandard finite difference schemes, World Scientific, 2005.
12. Mohapatra, J. and Natesan, S. Uniform convergence analysis of finite difference scheme for singularly perturbed delay differential equation on an adaptively generated grid, Numer. Math. Theory Methods Appl. 3(1) (2010) 1–22.
13. Roos, H.G., Stynes, M. and Tobiska, L. Numerical methods for singularly perturbed differential equations, Springer Series in Computational Mathematics, New York, 1996.
14. Roos, H.G. and Zarin, H. A second-order scheme for singularly perturbed differential equations with discontinuous source term, J. Numer. Math. 10(4) (2002) 275–289.
15. Shanthi, V. and Ramanujam, N. Asymptotic numerical methods for singularly perturbed fourth order ordinary differential equations of convectiondiffusion type, Appl. Math. Comput. 133(2-3) (2002), 559–579.
16. Shanthi, V. and Ramanujam, N. A boundary value technique for boundary value problems for singularly perturbed fourth-order ordinary differential equations, Comput. Math. Appl. 47(10-12) (2004), 1673–1688.
17. Shanthi, V., Ramanujam, N. and Natesan, S. Fitted mesh method for singularly perturbed reaction-convection-diffusion problems with boundary and interior layers, J. Appl. Math. Comput. 22(1-2) (2006), 49–65.
18. Turkyilmazoglu, M. Analytic approximate solutions of parameterized unperturbed and singularly perturbed boundary value problems, Applied Mathematical Modelling, 35(8) (2011) 3879–3886.
19. Turkyilmazoglu, M. Effective computation of exact and analytic approximate solutions to singular nonlinear equations of Lane–Emden-Fowler type, Applied Mathematical Modelling, 37(14-15) (2013) 7539–7548.
