Tammah, A. and Marpaung, J. F. . (2021) “The Effect Of Government Services On Village Development In Sei Buluh Perbaungan District”, Journal of Management Science (JMAS), 4(1), pp. 1–5. Available at: https://www.exsys.iocspublisher.org/index.php/JMAS/article/view/66 (Accessed: 1May2026).