แพทย์กระโทก ว. “The Academic Administration Affecting Early Childhood Development of Schools in Local Education Group 1 under the Department of Local Administration”. Mahamakut Graduate School Journal, vol. 16, no. 2, July 2019, pp. 303-15, https://so04.tci-thaijo.org/index.php/mgsj/article/view/200628.