Indrawan, I Nyoman Gde Ary, and Prayitno Basuki. “Analysis of Willingness to Pay For Environmental Services in the Management Planning of the Jero Kerti Waterfall Tourism Object With the Ecotourism Concept”. Formosa Journal of Science and Technology , vol. 3, no. 10, Oct. 2024, pp. 2323-36, doi:10.55927/fjst.v3i10.11752.