HASIBUAN, D. S.; HASIBUAN, I. A. .; ULFAH, M. .; SIREGAR, J. .; HARAHAP, A. . Principal Leadership Strategies in Improving Teacher Performance: A Literature Review. TOFEDU: The Future of Education Journal, [S. l.], v. 5, n. 1, p. 1119–1123, 2026. DOI: 10.61445/tofedu.v5i1.1645. Disponível em: https://journal.tofedu.or.id/index.php/journal/article/view/1645. Acesso em: 24 feb. 2026.