Raksa-Arayawetchakul, W., P. Pontin, and N. Panyaweeratat. “Human Resource Development Based on the Principles of Tri-sikkhā in Municipalities of San Sai District, Chiang Mai Province”. MCU Haripunchai Review, vol. 10, no. 2, June 2026, pp. 194-06, https://so04.tci-thaijo.org/index.php/JMHR/article/view/ba-014.