Apaiponlacharn , P., and K. Srihirun. “EFFECTS OF CIRCUIT TRAINING PROGRAM ON PHYSICAL FITNESS IN THAI PRE-CADETS”. Journal of Sports Science and Health, vol. 23, no. 3, Mar. 2023, pp. 53-62, https://he02.tci-thaijo.org/index.php/spsc_journal/article/view/261936.