Sulistiyowati, Wiwik, Malik Sandari, and Ribangun Bamban Jakaria. “Implementation of Lean Six Sigma Method in Cross Circuit in Sub Assy Area to Improve Product Quality”. International Journal of Engineering and Technology 7, no. 2.14 (April 6, 2018): 234–236. Accessed April 28, 2025. https://sciencepubco.com/index.php/IJET/article/view/14683.