คำบัว ภ.; พงษ์ภิญโญ พ.; คุณากรพิทักษ์ ป. The relationship between happiness of school administrators and school effectiveness of school under the office of Udon Thani primary educational service area. Trends of Humanities and Social Sciences Research, [S. l.], v. 5, n. 2, p. 21–42, 2019. Disponível em: https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/196680. Acesso em: 29 mar. 2024.