Butler, Richard; O'Gorman, Kevin D.; Prentice, Richard (2012-07-01). "Destination Appraisal for European Cultural Tourism to Iran". International Journal of Tourism Research. 14 (4): 323–338. doi:10.1002/jtr.862. ISSN1522-1970.
Peter Grant (October 4, 2016). "Developers Make Bets on Iran". Wall Street Journal. Archived from the original on January 26, 2021. Retrieved December 2, 2020.
worldcat.org
Butler, Richard; O'Gorman, Kevin D.; Prentice, Richard (2012-07-01). "Destination Appraisal for European Cultural Tourism to Iran". International Journal of Tourism Research. 14 (4): 323–338. doi:10.1002/jtr.862. ISSN1522-1970.
Peter Grant (October 4, 2016). "Developers Make Bets on Iran". Wall Street Journal. Archived from the original on January 26, 2021. Retrieved December 2, 2020.