“FACTORS ASSOCIATED WITH PHYSICAL ACTIVITY AMONG GRADE 4-6 STUDENTS IN NORTHERN THAILAND: Archin Songthap1, Pramote Wongsawat1, Phong-ek Suksai2, Wanitcha Kanthasorn3and Pattama Suphunnakul1” (2020) The Southeast Asian Journal of Tropical Medicine and Public Health, 50(5), pp. 976–983. Available at: https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/91 (Accessed: 6 May 2026).