ANUGRAH, Anugrah; HANIM, Zaenab; NURLAELAH, Nurlaelah. Principal’s Strategic Planning in Improving the Quality of Education in Bontang City Vocational High Schools. EduLine: Journal of Education and Learning Innovation, [S. l.], v. 2, n. 3, p. 312–321, 2022. DOI: 10.35877/454RI.eduline1237. Disponível em: https://jurnal.ahmar.id/index.php/eduline/article/view/1237. Acesso em: 19 apr. 2026.