Jeffrey Oon, Daniel Aiman Oon, and Mahathir Mohamad. “Comparative Analysis of Numerical Methods for Earth Orbit Calculations in Celestial Mechanics”. Enhanced Knowledge in Sciences and Technology 5, no. 2 (December 17, 2025): 38–46. Accessed August 15, 2026. https://periodical.uthm.edu.my/index.php/ekst/article/view/18404.