Ahmad, H., Khan, T. A., Durur, H., Ismail, G. M. & Yokus, A., Analytic approximate solutions of diffusion equations arising in oil pollution, Journal of Ocean Engineering and Science, 2020, doi: https://doi.org/10.1016/j.joes.2020.05.002.
 Ahmad, H., Khan, T. A. & Yao, S.-W., Numerical solution of second order Painlevé differential equation, Journal of Mathematics and Computer Science, 21, 2020, 150–157.
 GOLGELEYEN, F., HASDEMIR, M., NUMERICAL SOLUTION OF AN INVERSE PROBLEM FOR THE LIOUVILLE EQUATION, TWMS Journal of Applied and Engineering Mathematics, 9(4), 2019, 909-920.
 Yokus, A., Durur, H. & Ahmad, H., Hyperbolic type solutions for the couple Boiti-Leon-Pempinelli system, Facta Universitatis, Series: Mathematics and Informatics, 35, 2020, 523–531.
 Bazighifan, O., Ahmad, H. & Yao, S.-W., New Oscillation Criteria for Advanced Differential Equations of Fourth Order, Mathematics, 8, 2020, 728.
 El-Dib, Y., Stability Analysis of a Strongly Displacement Time-Delayed Duffing Oscillator Using Multiple Scales Homotopy Perturbation Method, Journal of Applied and Computational Mechanics, 4, 2018, 260–274.
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 Popov, V. L., Solution of adhesive contact problem on the basis of the known solution for non-adhesive one, Facta Universitatis, Series: Mechanical Engineering, 16, 2018, 93–98.
 Abouelregal AE, Ahmad H, Yao SW. Functionally Graded Piezoelectric Medium Exposed to a Movable Heat Flow Based on a Heat Equation with a Memory-Dependent Derivative. Materials.13(18), 2020, 3953.
 Ahmad I, Ahmad H, Thounthong P, Chu YM, Cesarano C. Solution of Multi-Term Time-Fractional PDE Models Arising in Mathematical Biology and Physics by Local Meshless Method, Symmetry, 12(7), 2020, 1195.
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 Yokus, A., Durur, H., Ahmad, H. & Yao, S.-W., Construction of Different Types Analytic Solutions for the Zhiber-Shabat Equation, Mathematics, 8, 2020, 908.
 Ahmad, H., Variational Iteration Method with an Auxiliary Parameter for Solving Telegraph Equations, Journal of Nonlinear Analysis and Application, 2018, 2018, 223–232.
 Ahmad, H., Khan, T. A. & Yao, S. W., An efficient approach for the numerical solution of fifth-order KdV equations, Open Mathematics, 18, 2020, 738–748.
 Ahmad, H., Auxiliary parameter in the variational iteration algorithm-II and its optimal determination, Nonlinear Science Letters A, 9, 2018, 62–72.
 Ahmad, H., Variational Iteration Algorithm-I with an Auxiliary Parameter for Solving Fokker-Planck Equation, Earthline Journal of Mathematical Sciences, 2, 2019, 29–37.
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 He, J.-H., Notes on the optimal variational iteration method, Applied Mathematics Letters, 25, 2012, 1579–1581.
 Ahmad, H., Seadawy, A. R. & Khan, T. A., Numerical solution of Korteweg--de Vries-Burgers equation by the modified variational iteration algorithm-II arising in shallow water waves, Physica Scripta, 95, 2020, 45210.
 Ahmad, H., Seadawy, A. R., Khan, T. A. & Thounthong, P., Analytic approximate solutions for some nonlinear Parabolic dynamical wave equations, Journal of Taibah University for Science, 14, 2020, 346–358.
 Ahmad, H. & Khan, T. A., Variational iteration algorithm-I with an auxiliary parameter for wave-like vibration equations, Journal of Low Frequency Noise Vibration and Active Control, 38, 2019, 1113–1124.
 Ahmad, H. & Khan, T. A., Variational iteration algorithm I with an auxiliary parameter for the solution of differential equations of motion for simple and damped mass–spring systems, Noise & Vibration Worldwide, 51, 2020, 12–20.
 Ahmad, H., Khan, T. A. & Cesarano, C., Numerical Solutions of Coupled Burgers′ Equations, Axioms, 8, 2019, 119.
 Ahmad, H., Seadawy, A. R. & Khan, T. A., Study on numerical solution of dispersive water wave phenomena by using a reliable modification of variational iteration algorithm, Mathematics and Computers in Simulation, 2020, doi: https://doi.org/10.1016/j.matcom.2020.04.005.
 He, J.-H., A fractal variational theory for one-dimensional compressible flow in a microgravity space, Fractals, 2019, doi: 10.1142/S0218348X20500243.
 He, J.-H., Generalized variational principles for buckling analysis of circular cylinders, Acta Mechanica, 231, 2020, 899–906.
 He, J. H., Variational principle and periodic solution of the Kundu–Mukherjee–Naskar equation, Results in Physics, 17, 2020, 103031.
 Kaya, D. & El-Sayed, S. M., On a generalized fifth order KdV equations, Physics Letters A, 310, 2003, 44–51.
 He, C.-H., Shen, Y., Ji, F.-Y. & He, J.-H., Taylor series solution for fractal Bratu-type equation arising in electrospinning process, Fractals, 28(1), 2020, 2050011.
 He, J.-H., A simple approach to one-dimensional convection-diffusion equation and its fractional modification for E reaction arising in rotating disk electrodes, Journal of Electroanalytical Chemistry, 854, 2019, 113565.