Ramadhani, Resty Ayu, Rina Fitriana, Anik Nur Habyba, and Yun-Chia Liang. 2023. “Enhancing Quality Control of Packaging Product: A Six Sigma and Data Mining Approach”. Jurnal Optimasi Sistem Industri 22 (2):197-214. https://doi.org/10.25077/josi.v22.n2.p197-214.2023.