M. Syahril, Azriadi E, Tanjung LS. Quality Control Analysis To Reduce Bag Product Defects Using The Lean Six Sigma Method (Case Study: Alfajar Bag Convection Msmes, Jakarta). jestm [Internet]. 2024 Mar. 27 [cited 2025 Apr. 24];4(1):40-6. Available from: https://jes-tm.org/index.php/jestm/article/view/153