SYIFAUN NADA. Concept of Buying and Selling Transactions UsingQuick Response Indonesian Standard Perspective of DSN MUI Fatwa No: 116/DSN-MUI/IX/2017 Concerning Sharia Electronic Money. JIQSI : Jurnal Ilmu Al Qur’an dan Studi Islam, [S. l.], v. 1, n. 2, p. 65–81, 2023. DOI: 10.64341/jiqsi.v1i2.13. Disponível em: https://ejournal.stiqmiftahulhudarawalo.ac.id/index.php/jiqsi/article/view/13.. Acesso em: 17 aug. 2026.