Marbun, Desy Ratnasari. “Effect of Placement Based on Expertise and Work Experience on Employee Work Productivity In PDAM Tirtanadi Branch Tuasan”. Enrichment : Journal of Management 10, no. 1, Novembe (November 1, 2019): 11-16. Accessed June 4, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/3.