Implementasi Key Performance Indicator Pada Departemen Operasional PT Umroh Madani Amanah. International Journal of Halal Economics, [S. l.], v. 2, n. 1, p. 27–35, 2025. Disponível em: https://stesbn.ac.id/ejurnal/index.php/ijhe/article/view/6. Acesso em: 10 oct. 2026.