Sirait, S. and Sinaga, K. 2020. Effective BUMDes Management Strategies to Improve Village Economy in Naga Dolok Village, Simalungun Regency. Jurnal Mantik. 4, 3 (Nov. 2020), 2218-2224. DOI:https://doi.org/10.35335/mantik.Vol4.2020.1106.pp2218-2224.