Thongchoojai, J. ., Y. Kamolvoradej, and S. . Rujimethabhas. “DEVELOPING A PARTICIPATORY QUALITY ASSURANCE SYSTEM: A CASE STUDY OF UTTARADIT SPECIAL EDUCATION CENTER”. Journal of MCU Nakhondhat, vol. 9, no. 7, July 2022, pp. 206-20, https://so03.tci-thaijo.org/index.php/JMND/article/view/262569.