Alfarizie, M. Mahdi Saman, and Junawan Junawan. “Analysis of Regional Tax and Regional Retribution Contributions in Efforts to Increase Medan City’s Original Regional Income 2020-2024”. Journal of Economics and Social Sciences (JESS), vol. 4, no. 2, Aug. 2025, pp. 923-32, doi:10.59525/jess.v4i2.946.