LA VIỆT, H. DEVELOPING CONTINGENT OF PRIMARY SCHOOL ADMINISTRATORS ACCORDING TO THE STANDARD TITLE OF PRINCIPAL IN CAO BANG PROVINCE. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 7, n. 23, 2021. DOI: 10.51453/2354-1431/2021/638. Disponível em: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/638. Acesso em: 24 apr. 2024.