Muhammad Islam, Muhammad Umar Aslam, Tran Thi Hong Ngọc, Phan Truong Khanh. A Categorization Based Comparative Study of Food Security and Population in the World’s Five Most Populous Countries. PPASB [Internet]. 2026 Mar. 11 [cited 2026 Jul. 26];63(1):21-3. Available from: https://ppaspk.org/index.php/PPAS-B/article/view/1621