WAHIB, A.; ASNAWAN, A. The Role of Supervisors and Principal in Increasing Teacher’s Competencies at Madrasah Aliyah Ma’arif NU Kencong Jember : . International Journal of Educational Research & Social Sciences , [S. l.], v. 2, n. 3, p. 456–463, 2021. DOI: 10.51601/ijersc.v2i3.93. Disponível em: https://ijersc.org/index.php/go/article/view/93. Acesso em: 27 jul. 2025.