Kadir A. ANALYSIS OF THE EFFECT OF STANDARD OPERATIONAL PROCEDURES, INTERNAL SUPERVISION ON EMPLOYEE PERFORMANCE AT THE REGIONAL TAX AND LEVEL MANAGEMENT AGENCY OF TAPIN DISTRICT IN RANTAU. IJEBAR [Internet]. 2021 Dec. 31 [cited 2025 Sep. 6];5(4). Available from: https://jurnal.stie-aas.ac.id/index.php/IJEBAR/article/view/3863