L. J. Lubis, S. Lubis, and E. Erlina, “ANALYSIS OF THE EFFECTIVENESS OF SERVICES ON MOTOR VEHICLE TAX COLLECTION IN THE REGIONAL REVENUE MANAGEMENT UNIT OF THE SOUTH MEDAN ONE-STOP INTEGRATED ADMINISTRATION SYSTEM (SAMSAT)”, JIGE, vol. 4, no. 3, pp. 1979–1985, Sep. 2023.