UTAMI, Indrianti Putri. Praktik Jual Beli Pre Order dengan Sistem Online. Al-Muamalat: Jurnal Ekonomi Syariah, [S. l.], v. 9, n. 1, p. 20–28, 2022. DOI: 10.15575/am.v9i1.14045. Disponível em: https://journal.uinsgd.ac.id/index.php/mua/article/view/14045. Acesso em: 15 mar. 2025.