Sadanghan, Juthamas, and Supakanjana Jayapattana. 2023. “DESIRABLE CHARACTERISTICS OF THE HEADS OF PRESCHOOL CHILD DEVELOPMENT CENTERS UNDER BANGKOK METROPOLITAN ADMINISTRATION”. Academic Journal Phranakhon Rajabhat University 14 (1):100-113. https://so01.tci-thaijo.org/index.php/AJPU/article/view/265275.