2021. Implementation of Lean Manufacturing to Reduce Waste in the Maintenance Section in National Automotive Sub Companies of Indonesia . International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT. 7, 9 (Sep. 2021), 5–12. DOI:https://doi.org/10.31695/IJERAT.2021.3729.