PROYRUNGROJ, R. Host-guest relationship in the context of volunteer tourism. European Journal of Tourism Research, [S. l.], v. 16, p. 177–200, 2017. DOI: 10.54055/ejtr.v16i.284. Disponível em: https://ejtr.vumk.eu/index.php/about/article/view/284. Acesso em: 13 oct. 2026.