Najwa Rahmadini, Tiurma Sari Harahap and Galih Supraja 2026. Government Expenditure Budget Efficiency Through the Implementation of the E-Procurement System at the Medan City LPSE. International Journal of Economic Research and Financial Accounting. 5, 1 (Oct. 2026). DOI:https://doi.org/10.55227/ijerfa.v5i1.478.