ORACION, E. G. . Constructing Ecotourism: The Application of the Tourism System Model in the Philippine Context. Silliman Journal, Dumaguete, Philippines, v. 42, n. 2, 2022. Disponível em: https://sillimanjournal.su.edu.ph/index.php/sj/article/view/237. Acesso em: 3 jul. 2024.