Safari, S. and Suwitho, S. 2022. THE EFFECT OF CONTROL SYSTEM AND THE COMPETENECE OF SUPERVISORS ON SALESPERSONS WORK MOTIVATION AND THEIR RELATIONSHIP TO SALESPERSONS PERFORMAANCE AT PT. AGUNG AUTOMALL PEKANBARU. International Conference of Business and Social Sciences. 2, 1 (Mar. 2022), 205–220.