BHARADWAJ, A. A. ECO TOURISM: इको टूरिज्म. International Journal of Research -GRANTHAALAYAH, [S. l.], v. 3, n. 9SE, p. 1–3, 2015. DOI: 10.29121/granthaalayah.v3.i9SE.2015.3211. Disponível em: https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG15_S09_10. Acesso em: 2 feb. 2023.