(Ninpetch), P. W. W., S. Phompanjai, C. Sritho, and C. Srijarumeteeyan. “Strengthening Health According to Sappurisadhamma 7 for Vanz boys in Khon Kaen Province”. Dhammathas Academic Journal, vol. 21, no. 1, Mar. 2021, pp. 91-102, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/243798.