3 M. Torvattanabun and S. Duangpithak. (2011) Numerical Simulations of Fokker-Plank Equation by Variational Iteration Method. International Journal of Mathematical Analysis, 5(44), 2193-2201.

4 S. Duangpithak and M. Torvattanabun. (2012) Variational Iteration Method for Solving Nonlinear Reaction-Diffusion-Convection Problems. Applied Mathematical Sciences, 6(12), 843 – 849.

5 M. Torvattanabun, S. Koonprasert and S. Duangpithak. (2012) Efficacy of Variational Iteration Method for Nonlinear Heat Transfer Equations – Classical and Multistage Approach. International Review of Chemical Engineering, 4(5), 524-428.

6 S. Koonprasert and M. Torvattanabun. (2016) Multistage Variational Iteration Method of Temperature Distribution for Annular Fins under Partially Wet-Dry Surface Condition. Global Journal of Pure and Applied Mathematics, 12(3), 2635-2650.

 7 M. Torvattanabun and S. Koonprasert. (2016) Variational Iteration Method Combined with The Improved Generalized tanh-coth Method for The Generalized (1+1) Dimensional and (2+1) Dimensional Ito Equations. Far East Journal of Mathematical Sciences, 100(8), 1339-1355.

 8 M. Torvattanabun, J. Simmapim, D. Saennuad and T. Somaumchan. (2017) The Improved Generalized tanh-coth Method Applied to Sixth-Order Solitary Wave Equation. Journal of Mathematics, 2017, 11 pages

9 M. Torvattanabun and S. Koonprasert. (2017) Exact Traveling Wave Solutions to the Zakharov-Kuznetsov-Benjamin-Bona-Mahony Nonlinear Evolution Equation Using the VIM Combined with the Improved Generalized tanh-coth Method. Applied Mathematical Sciences, 11(64), 3141 – 3552.

10 M. Torvattanabun, P. Juntakud, A. Saiyun and N. Khansai. (2018) The New Exact Solutions of the New Coupled Konno-Oono Equation By Using Extended Simplest Equation Method. Applied Mathematical Sciences, 12(6), 293 – 301.

11 M. Torvattanabun, C. Simtrakankul and S. Duangpithak. (2019) The (3+1) Dimensional Fractional Modified KdV-Zakharov- Kuznetsov Equation by Using the Improved Generalized tanh-coth Method. Journal of Mathematical Sciences: Advances and Applications, 56, 53-65.