ANNA SIMANJUNTAK; USIONO. PRINCIPLES OF MANAGEMENT BASED ON THE QUR’AN. MORFAI JOURNAL, [S. l.], v. 4, n. 2, p. 464–470, 2024. DOI: 10.54443/morfai.v4i2.1787. Disponível em: http://radjapublika.com/index.php/MORFAI/article/view/1787. Acesso em: 9 mar. 2025.