Kristiani Simangunsong, Vinta Hotma Rotua Manullang, Andre Fitriano and Henny Pratiwi 2026. The Influence of Competency, Communication, and Work Ethic on Employee Effectiveness at the North Sumatera Governor’s Office (Case study at the North Sumatra Governor’s Office). Indonesian Journal of Business Analytics . 6, 2 (May 2026), 373–390. DOI:https://doi.org/10.55927/ijba.v6i2.16494.