Muhammad Islam, Muhammad Umar Aslam, Tran Thi Hong Ngọc, & Phan Truong Khanh. (2026). A Categorization Based Comparative Study of Food Security and Population in the World’s Five Most Populous Countries. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, 63(1), 21–31. https://doi.org/10.53560/PPASB(63-1)1124