Nilsawang, Peddao, Pornthep Steannoppakao, and Akkaluck Pheasa. 2022. “Effective Administrative on Early Childhood Education for Primary Schools under the Basic Education Commission Offices in the Northeast”. Dhammathas Academic Journal 22 (4):267-80. https://so06.tci-thaijo.org/index.php/dhammathas/article/view/257889.