BUNJONGSANA NA AYUTTHAYA, U.; SUCHARITRAK , P. The relationship between management competency management affecting school administration in The 21st century under the of ratchaburi Educational service area 2 . VOICES AND VISIONS: Journal of Humanities and Social Sciences, [S. l.], v. 4, n. 2, p. 19–33, 2021. DOI: 10.53848/vvjournal.v4i2.2328. Disponível em: https://so14.tci-thaijo.org/index.php/VandVJournal/article/view/2328. Acesso em: 16 sep. 2026.