Jamjuree, B., and N. Charoenkul. “he riority eeds of chool anagement evelopment of angkok etropolitan chools in ongkhaem istrict ffice ased on the oncept of otal uality anagement”. ournal of umanities and ocial ciences, ajapruk niversity, ol. 7, no. 2, Aug. 2021, pp. 31-46, https://so03.tci-thaijo.org/index.php/rpu/article/view/254772.