Panjaitan, D. E., Sinaga, R. S. ., & Warjio, W. (2025). Implementation of Groundwater Tax Services and Improvement in the Application of Electronic-Based Regional Revenue Management Information System (E-Simpatda) at the Langkat Regency Revenue Agency. Journal of Public Representative and Society Provision, 5(2), 326-331. https://doi.org/10.55885/jprsp.v5i2.518