Soedewo, E. and Ahmad, N. 2022. ABBASID COINS IN NORTH SUMATRA: EVIDENCE OF INTERACTIONS WITH ISLAMIC CIVILIZATION IN THE 8TH – 9TH CENTURY A.D. AMERTA. 40, 1 (Jun. 2022), 73–86. DOI:https://doi.org/10.55981/amt.2022.21.