Zulfa Azmi I, Yogi Sari O. AN ANALYSIS OF QUALITY CONTROL IN EFFORTS TO REDUCE THE LEVEL OF PRODUCT DEFECTS AT PT. MAG. IJER [Internet]. 2020Jul.20 [cited 2025Apr.21];7(1):21-7. Available from: http://103.8.12.212:33180/unj/index.php/ijer/article/view/16629