“Analysis of Self-Estimated Pricing (HPS) in the Procurement Department Units 1&2 PT. PJB UP Paiton: Analisis Penentuan Harga Perkiraan Sendiri (HPS) di Bagian Pengadaan Unit 1&2 PT. PJB UP Paiton ”, prozima, vol. 7, no. 1, pp. 59–72, July 2023, doi: 10.21070/prozima.v7i1.1612.