GULO, N. P.; TAMPUBOLON, K.; PARINDURI, R. Y. The Implementation and Effectiveness of Leadership Policies on Improving Service Quality Through Public Participation at the Medan Helvetia Sub-District Office. Jurnal Dialektika: Jurnal Ilmu Sosial, [S. l.], v. 23, n. 3, p. 259–276, 2025. DOI: 10.63309/dialektika.v23i3.735. Disponível em: https://www.jurnaldialektika.com/index.php/piani/article/view/735. Acesso em: 24 sep. 2026.