Pasaribu, Eben Ezer, Zulkili Lubis, Zulkifli Zulkifli, Rizabuana Ismail, and Henry Sitorus. 2019. “Social Interaction As a Method to Solve Non-Performing Loan in Bank X of Medan Area, Indonesia”. International Journal of Research in Business and Social Science (2147- 4478) 8 (6), 287-91. https://doi.org/10.20525/ijrbs.v8i6.566.