Kholilul Kholik, & Mohammad Yusri. (2025). Challenges of Human Resource Management Towards Optimizing Public Service Performance in Realizing Sustainable Development at the Population and Civil Registration Service of Medan City. International Journal of Health, Economics, and Social Sciences (IJHESS), 7(1), 449~454. https://doi.org/10.56338/ijhess.v7i1.7057