SIREGAR, Nur Intan. Indikasi Gharar Dalam Janji dan Akad Pada Bisnis Travel Umrah (Analisa Fiqih Muamalah) . J-MABISYA, [S. l.], v. 3, n. 1, p. 37–44, 2022. DOI: 10.56874/j-mabisya.v3i1.859. Disponível em: https://jurnal.stain-madina.ac.id/index.php/j-mabisya/article/view/859. Acesso em: 18 sep. 2025.