Bocskull, V. ., and E. . Sungtong. “LISTENING TO VOICES OF CUSTOMERS FOR INTERNAL QUALITY ASSURANCE DEVELOPMENT IN FUTURE BASIC EDUCATION: PRINCIPLES, CONCEPTS, AND PRACTICES”. Journal of MCU Nakhondhat, vol. 10, no. 12, Dec. 2023, pp. 16-24, https://so03.tci-thaijo.org/index.php/JMND/article/view/273588.