HASANAH, R. P.; KADENUN, K.; NAFI’AH, N. Etika Bisnis Islam dalam Khiyar Jual Beli dengan Sistem Cash on Delivery di Ponorogo. Indonesian Journal of Islamic Economics and Finance, [S. l.], v. 1, n. 1, p. 54–71, 2021. DOI: 10.37680/ijief.v1i1.877. Disponível em: https://ejournal.insuriponorogo.ac.id/index.php/jief/article/view/877. Acesso em: 1 jun. 2025.