AZIZ, R M. Hahslm Theory as Guidance of Straight Path in Management of Hajj and Finance. KnE Social Sciences, [S. l.], v. 3, n. 8, p. 105–120, 2018. DOI: 10.18502/kss.v3i8.2503. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/2503. Acesso em: 12 oct. 2025.