Batubara, Azwar Azmi, Badaruddin Badaruddin, and Tengku Irmayani. 2025. “Public Policy Failure (Case Study of Medan City Regional Regulation Number 5 of 2022 Regarding the Determination of Zoning for Street Vendor Activities in Medan City)”. East Asian Journal of Multidisciplinary Research 4 (1):127-44. https://doi.org/10.55927/eajmr.v4i1.12743.