SHEKER, N.; PUTTANNA, K. Ecotourism and Sustainability: An Analysis of Strategies, Practices and Problems. Atna Journal of Tourism Studies, [S. l.], v. 3, n. 1, p. 75-85, 2008. DOI: 10.12727/ajts.3.6. Disponível em: https://journals.christuniversity.in/index.php/atna/article/view/541. Acesso em: 5 may. 2024.