NDARU CHOYO GUMILANG. Istisna Agreement Transactions in Online Buying and Selling Activities: Transaksi Akad Istisna’ dalam Kegiatan Jual Beli. Al-Fatawa: Jurnal Hukum Islam dan Pranata Sosial, [S. l.], v. 1, n. 2, p. 97–112, 2024. Disponível em: https://journal.syamilahpublishing.com/fatawa/article/view/261.. Acesso em: 17 apr. 2026.