P. Wiharjokusumo, B. P. Napitupulu, D. Panggabean, and D. Girsang, “The Effectiveness of BUMDes in Increasing Tourist Visits through the Pentahelix Model at Tourism Village Sub-District of Silahisabungan Dairi Regency, Indonesia”, FINBE, vol. 1, no. 2, pp. 94–101, Aug. 2022.