JAYAPRAWIRA , Acep R; ., Abdussalam. Analysis of the Implementation of the Islamic Contract Principle on Hajj Fund Management By Hajj Fund Management Agency (BPKH) . KnE Social Sciences, [S. l.], v. 3, n. 26, p. 628–661, 2019. DOI: 10.18502/kss.v3i26.5405. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/5405. Acesso em: 15 sep. 2025.