Gymnasti Febriani,
Sharia Banking Study Program, Faculty of Economics and Islamic Business, State Islamic University of North Sumatra, Medan,
Indonesia
Muhammad Irwan Padli Nasution,
Sharia Banking Study Program, Faculty of Economics and Islamic Business, State Islamic University of North Sumatra, Medan,
Indonesia
Tuti Anggraini,
Sharia Banking Study Program, Faculty of Economics and Islamic Business, State Islamic University of North Sumatra, Medan,
Indonesia