Hasibuan, R.F. et al. 2026. Analysis of Transformational Leadership and Work Environment on Employee Performance with Work Motivation as a Mediating Variable at the National Narcotics Agency of North Sumatra Province . Journal of Management, Economic, and Accounting. 5, 3 (May 2026), 1909–1916. DOI:https://doi.org/10.37676/jmea.v5i3.1646.