Poonyaneti, P. ., R. . Nopanatwongsakorn, and K. . Janrueang. “Motivation at Work of Teacher in Childhood Development Center under Local Administrative Organization Amphoe Bang Phae Ratchaburi Province”. Dhammathas Academic Journal, vol. 21, no. 1, Mar. 2021, pp. 133-44, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/247382.