Yontawin, Pinnara, and Tharinthorn Namwan. “The development of the school dropout risk prevention of students by using PDCA cycle of Collages in the affiliation vocational education in Roi Et Province”. Journal for Developing the Social and Community 11, no. 1 (April 28, 2024): 413–432. accessed September 23, 2026. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/274945.