Khalidin, Bismi, and Alfi Zahara. “EE YSTEM NALYSIS ND TS ISPARITY NDER SI MART GENT ERVICES n he amsarah erspective”. Al-Iqtishadiah: Jurnal Hukum Ekonomi Syariah 3, no. 2 (January 22, 2023): 180–189. ccessed December 22, 2024. https://journal.ar-raniry.ac.id/iqtishadiah/article/view/2393.