K. A. Lahagu, M. H. Waruwu, E. Telaumbanua, and P. Lahagu, “ANALYSIS OF THE ROLE OF LEADERSHIP IN IMPROVING THE EFFECTIVENESS OF GOVERNMENT PROGRAMS AT THE NORTH MANDREHE DISTRICT OFFICE, WEST NIAS REGENCY”, METADATA, vol. 8, no. 2, pp. 225-237, Apr. 2026.