“THE QUALITY IMPROVEMENT OF PRIMER PACKAGING PROCESS USING SIX SIGMA METHODOLOGY”. Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri 10, no. 2 (February 25, 2009): 177–184. Accessed July 24, 2026. https://jurnalindustri.petra.ac.id/index.php/ind/article/view/16985.