Pakchumni, P., T. Thongsrisuk, A. Chuachang, and P. Sattayarak. “Factor on Exercise of Students at Chaiyaphum Rajabhat University”. Dhammathas Academic Journal, vol. 21, no. 2, June 2021, pp. 13-26, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/247431.