Zebua, E. B. D.; Rizky, M. C.; Sapuri, A. D.; Syahputra, K.; Nasution, H. T. The Role of Leadership and Work Loyalty in Improving Work Assessment at the North Sumatra Provincial Cooperatives and SMEs Office UPT. PLUT. J. Manag. Account. Gen. Financ. Int. Econ. Issues 2025, 5, 324-334.