Pristyanto, Yafie, and Rochmoeljati. “Eliminating Production Process Waste With Lean Six Sigma in the Gresik Ceramic Industry”. Jurnal Sistem Cerdas 7, no. 2 (August 27, 2024): 120 - 132. Accessed July 12, 2026. https://apic.id/jurnal/index.php/jsc/article/view/408.