PISHGAHIFARD, Zahra; SALEHI, Hassan. Geo-economics and Considerations on the Tourism Industry with Emphasis on Historical Cities Tourism and Ecotourism in Iran. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 15, n. 1, p. 301–310, 2014. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/2155. Acesso em: 27 sep. 2025.