Otaide, Ikechukwu Jackson, and Ekuma-Okereke Enyinnaya. “Efficient Numerical Method for Generating Closed Form Solution for Nonlinear Bratu Differential Equations”. Journal of Natural Sciences and Mathematics Research 11, no. 2 (December 10, 2025): 136–145. Accessed December 12, 2025. https://journal.walisongo.ac.id/index.php/JNSMR/article/view/26950.