B. C. Dhage, S. B. Dhage, S. K. Ntouyas. Approximating solutions of nonlinear second order ordinary differential equations via Dhage iteration principle. Malaya J. Mat. [Internet]. 2016 Jan. 1 [cited 2024 Nov. 21];4(01):8-18. Available from: https://www.malayajournal.org/index.php/mjm/article/view/507