Sihaloho, Josef Evan, Atifah Ramadani, and Suci Rahmayanti. 2020. “Implementasi Sistem Pembayaran Quick Response Indonesia Standard Bagi Perkembangan UMKM Di Medan”. Jurnal Manajemen Bisnis 17 (2):287-97. https://doi.org/10.38043/jmb.v17i2.2384.