Muhammad Kholil. “Implementation of Lean Manufacturing to Reduce Hold Types of Mission Case Products Using DMAIC and KAIZEN Approach”. International Journal of Scientific and Applied Research (IJSAR), EISSN: 2583-0279, vol. 3, no. 2, Feb. 2023, pp. 34-43, doi:10.54756/IJSAR.2023.V3.2.4.