“The Role of Perum Perhutani Independent Business Unit Facilitator in Tourism Development of Putuk Truno Prigen Waterfall: Peran Fasilitator Kesatuan Bisnis Mandiri Perum Perhutani dalam Pengembangan Pariwisata Air Terjun Putuk Truno Prigen”, IJPPR, vol. 17, p. 10.21070/ijppr.v17i0.1245, July 2022, doi: 10.21070/ijppr.v17i0.1245.