Bakhar, Muhamad, Evanita Evanita, and Ulil Albab. 2024. “Information System for Procurement of Goods and Services of the Politeknik Harapan Bersama (SIPHARBER)”. West Science Information System and Technology 2 (02):196-208. https://doi.org/10.58812/wsist.v2i02.1173.