EDUCATIONAL COSTING PLAN AS A STRATEGY FOR IMPROVING THE QUALITY OF EDUCATIONAL SERVICES. IZZI: Jurnal Ekonomi Islam, [S. l.], v. 3, n. 3, p. 98–110, 2023. Disponível em: https://jurnalstebibama.ac.id/index.php/jizzi/article/view/133. Acesso em: 16 mei. 2026.