Boonurai, Suwapha, Parinya Ruangtip, and Sirikran Juntapremjit. “A DEVELOPMENT INDICATORS FOR EDUCATIONAL INEQUALITY IN PRESCHOOL”. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University 12, no. 2 (December 28, 2021): 81–94. accessed January 8, 2026. https://so04.tci-thaijo.org/index.php/yri/article/view/256533.