Harahap B. PENGARUH RAW MATERIALS COST DAN DIRECT LABOR COST TERHADAP COST OF PRODUCTION PADA UMKM DI KOTA BATAM. JAB [Internet]. 2021Sep.6 [cited 2024Nov.22];5(2):1-7. Available from: https://forum.upbatam.ac.id/index.php/jab/article/view/4467