Firdaus, Wangi, Wakhid Slamet Ciptono, and Satibi Satibi. “LEAN AND SIX SIGMA IMPLEMENTATION IN HOSPITAL PHARMACY SETTING: A LITERATURE REVIEW”. PREPOTIF : JURNAL KESEHATAN MASYARAKAT 9, no. 2 (August 30, 2025): 6402–6414. Accessed April 1, 2026. https://journal.universitaspahlawan.ac.id/index.php/prepotif/article/view/46337.