“Analysis of Quality Control for Automatic Transmission Products MCVT Model By Six Sigma Approach at PT HPPM, Indonesia”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) 6, no. 10 (October 20, 2020): 68–75. Accessed December 22, 2024. https://ijerat.com/index.php/ijerat/article/view/491.