SUGESTI, T.; SIREGAR, A. N.; TANJUNG, B. N. Principal Leadership Model in Improving the Quality of Education. Holistic Science, [S. l.], v. 4, n. 2, p. 338–345, 2024. DOI: 10.56495/hs.v4i2.667. Disponível em: https://jurnal.larisma.or.id/index.php/HS/article/view/667. Acesso em: 5 sep. 2025.