Arif, Muhammad, Irwan Syari Tanjung, and Nafisah Azzharoh Nasution. “Keputusan Pembelian Berbasis Marketing Mix Di Moderasi Sertifikasi Halal”. Eqien - Jurnal Ekonomi dan Bisnis 11, no. 04 (December 27, 2022): 174 – 184. Accessed August 27, 2026. https://www.stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/1271.