BAKAR, M. D. SHARI’AH APPROACHES TO PRODUCT DEVELOPMENT AND PRODUCT ENHANCEMENT IN ISLAMIC BANKING AND FINANCE; AN APPRAISAL. Jurnal Ekonomi & Studi Pembangunan, [S. l.], v. 4, n. 2, p. 1–14, 2011. DOI: 10.18196/jesp.v4i2.11880. Disponível em: https://journal.umy.ac.id/index.php/esp/article/view/11880. Acesso em: 30 apr. 2025.