TOHET, M.; CAHYONO, D. E. PENINGKATAN MUTU PERGURUAN TINGGI PESANTREN MELALUI ISO 21001 : 2018. Managere: Indonesian Journal of Educational Management, [S. l.], v. 2, n. 2, p. 157–170, 2020. Disponível em: https://serambi.org/index.php/managere/article/view/67. Acesso em: 27 apr. 2026.