Hasibuan, Elda Anzeli, Surya Darma, and Nurbaiti Nurbaiti. 2022. “Geographic Information System Mapping Potential of E-Market in Pandemic Period”. Jurnal Ekonomi, Manajemen, Akuntansi Dan Keuangan 3 (1):169–172. https://doi.org/10.53697/emak.v3i1.403.