WIWIT YULIESIE RASYID; ROSMILAWATI, Ila; JAKARIA. Managerial competence of school principals in improving the quality of elementary education services. Lentera Negeri, [S. l.], v. 7, n. 1, p. 1115–1120, 2026. DOI: 10.29210/992280. Disponível em: https://lentera.eloracenter.org/lentera/article/view/228. Acesso em: 8 aug. 2026.