Khodizah, S., Amir Makhmud Zain Nasution, & Elwardi Hasibuan. (2026). Strategies For Improving Public Service Quality At The Population And Civil Registration Office Of Deli Serdang Regency In Achieving Effective And Efficient Services. International Journal of Economics, Business and Innovation Research, 5(06), 2758-2768. https://doi.org/10.63922/ijebir.v5i06.7188