Wahyu Wiguna. “IMPLEMENTATION OF DMAIC APPROACH TO IMPROVEMENT OF BLOCK PRESS PRODUCTION PROCESS (CASE STUDY PT. XYZ)”. Jurnal Ekonomi 11, no. 02 (September 28, 2022): 1192–1197. Accessed May 24, 2025. https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/524.