Brownell, Judi. Can the sun rise on Sunset? Teaching note / Judi Brownell. - 2003. // Journal of teaching in travel & tourism : the official journal of ISTTE - International Society of Travel and Tourism Educators. Vol. 3 (2003), No. 3
Pearlman, David. Electronic commerce: friend or foe to the travel agents of the new millennium / David Pearlman, Tharun Pathapati. - 2001. // Journal of teaching in travel & tourism : the official journal of ISTTE - International Society of Travel and Tourism Educators. Vol. 1 (2001), No. 4
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Can the sun rise on Sunset? Teaching note ...