M. Jasim, N. . Anakira, L. Kamel, A. Amourah, A. . Fareed, and K. S. A. Kalbani, “Improved Solutions of OHAM Approximate Procedure for Classes of Nonlinear ODEs”, Contemp. Math., vol. 5, no. 3, pp. 4115–4131, Sep. 2024.