Putra , Zam Zam Permana, and Wiwik Sulistiyowati. “QUALITY IMPROVEMENT USING LEAN SIX SIGMA AND FAILURE MODES AND EFFECT ANALYSIS AT PT. CIPTA WARNA PELANGI”. Journal for Technology and Science 1, no. 2 (July 20, 2024): 38–61. Accessed December 25, 2025. https://journal.antispublisher.com/index.php/IPTEKS/article/view/153.