Bahrudin, Mohammad, and Hana Catur Wahyuni. “Measurement of Employee Work Productivity in the Production Department by Using Objective Matrix (OMAX) and Root Cause Analyze (RCA) Methods: Pengukuran Produktivitas Kerja Karyawan Pada Bagian Produksi Dengan Menggunakan Metode Objective Matrix (OMAX) Dan Root Cause Analyze (RCA)”. PROZIMA (Productivity, Optimization and Manufacturing System Engineering) 1, no. 2 (December 30, 2017): 116–122. Accessed September 2, 2025. https://prozima.umsida.ac.id/index.php/prozima/article/view/1546.