Billa, S. S., F. Fatimah, and J. Junaidi. “The Effect of Leadership, Working Environment and Workload on Employee Performance: The Case of Human Resource Development Agency of South Sumatera Province Region (BPSDM)”. International Journal of Business, Management and Economics, vol. 6, no. 2, May 2025, pp. 137 -49, doi:10.47747/ijbme.v6i2.2763.