Rizki, A., Dwi Iryaning Handayani and Yustina Suhandini 2023. Analysis of Self-Estimated Pricing (HPS) in the Procurement Department Units 1&2 PT. PJB UP Paiton. PROZIMA (Productivity, Optimization and Manufacturing System Engineering). 7, 1 (Jul. 2023), 59-72. DOI:https://doi.org/10.21070/prozima.v7i1.1612.