Raksa-Arayawetchakul, W., Pontin, P., & Panyaweeratat , N. (2026). Human Resource Development Based on the Principles of Tri-sikkhā in Municipalities of San Sai District, Chiang Mai Province. MCU Haripunchai Review, 10(2), 194–206. retrieved from https://so04.tci-thaijo.org/index.php/JMHR/article/view/ba-014