Zhong S, Tongdecharoen W, Soonjan R. Guidelines to Promote Extra Physical Activities Under the Double Reduction Policy in Secondary School. IJSASR [internet]. 2025 Aug. 21 [cited 2026 Feb. 22];5(5):11-20. available from: https://so07.tci-thaijo.org/index.php/IJSASR/article/view/6852