SARI, R. N. The Principal’s Academic Supervision on Improving Teachers’ Performance and Students’ Learning Achievement. PPSDP International Journal of Education, [S. l.], v. 4, n. 2, p. 559–567, 2025. DOI: 10.59175/pijed.v4i2.537. Disponível em: https://ejournal.ppsdp.org/index.php/pijed/article/view/537. Acesso em: 10 jul. 2026.