Ramadhani, Nirma, Syaparuddin Razak, and Ida Farida. “ISTIQAMAH AS A MEDIATOR IN THE BDI MODEL: IMPACT ON MIDDLE-CLASS BUSINESS VENTURES IN THE CULINARY SECTOR”. Jurnal Syarikah : Jurnal Ekonomi Islam 10, no. 2 (December 31, 2024): 209–223. Accessed June 17, 2026. http://103.127.96.46/index.php/JSEI/article/view/16114.