Kongthong, S., W. Siripirom, and P. Siribanpitak. “The Current and Desirable Statuses of The Internal Quality Assurance System of The Child Development Center Focusing on The Concept of Executive Functions”. Scholar: Human Sciences, vol. 10, no. 2, Dec. 2018, p. 1, http://www.assumptionjournal.au.edu/index.php/Scholar/article/view/2441.