Saofu, W. “Operational Effectiveness of the Sufficiency Economy Center Based on Iddhipāddham of Umong Subdistrict Municipality, Muang Lamphun District, Lamphun Province”. MCU Haripunchai Review, vol. 8, no. 2, June 2024, pp. 342-57, https://so04.tci-thaijo.org/index.php/JMHR/article/view/a-023.