AISYAH, H. L. Role of Principal’s Supervision in Improving Teacher’s Competency. PPSDP International Journal of Education, [S. l.], v. 3, n. 2, p. 438–450, 2024. DOI: 10.59175/pijed.v3i2.256. Disponível em: https://ejournal.ppsdp.org/index.php/pijed/article/view/256. Acesso em: 10 jul. 2026.