Oxamudra, Levana, Sunday Noya, Yurida Ekawati, Novenda Kartika Putrianto, Teguh Oktiarso, and Purnomo Purnomo. “Quality Improvement Analysis of X Brand Tube Packaging Using Six Sigma and Failure Mode and Effects Analysis (FMEA)”. Jurnal Sains dan Aplikasi Keilmuan Teknik Industri (SAKTI) 5, no. 02 (December 23, 2025): 111–124. Accessed December 26, 2025. https://sakti.machung.ac.id/index.php/jtiumc/article/view/167.