PURWOKO, A.; MUDA, I.; PATANA, P.; RAMADHANY, A. F. Willingness to Pay Analysis, Ideal Price and Determinants of Visitor Entrance Ticket Prices in Tangkahan Nature Tourism Area, Gunung Leuser National Park. International Journal of Professional Business Review, São Paulo (SP), v. 8, n. 5, p. e01358, 2023. DOI: 10.26668/businessreview/2023.v8i5.1358. Disponível em: https://openaccessojs.com/JBReview/article/view/1358. Acesso em: 29 mar. 2024.