BUANG, A. H. KEBEBASAN BERKONTRAK DI DALAM UNDANG-UNDANG ISLAM. Jurnal Syariah, [S. l.], v. 1, n. 2, p. 243–268, 1993. Disponível em: https://ijie.um.edu.my/index.php/JS/article/view/28370. Acesso em: 29 jun. 2024.