Maman Supriatman, Abu Naim, Agus Hermawan, Sapriyadi, Mardi. THE INFLUENCE OF PRODUCTION PLANNING, INVENTORY CONTROL, PRODUCT QUALITY, AND COST EFFICIENCY ON THE OPERATIONAL PERFORMANCE OF MANUFACTURING COMPANIES. IJSET [Internet]. 2026 Feb. 28 [cited 2026 Sep. 11];5(3):1705-11. Available from: https://ijset.org/index.php/ijset/article/view/1672