Wiharjokusumo, Padriadi, et al. “The Effectiveness of BUMDes in Increasing Tourist Visits through the Pentahelix Model at Tourism Village Sub-District of Silahisabungan Dairi Regency, Indonesia”. Frontiers in Business and Economics, vol. 1, no. 2, Aug. 2022, pp. 94-101, doi:10.56225/finbe.v1i2.90.