COOPER, Chris et al. Tourism: principles and practice. 4th ed. Harlow: Prentice Hall: Financial Times, 2008. ISBN 978-0-273-71126-1 .
HORNER, Susan a John SWARBROOKE. Business Travel and Tourism. Oxford:
Butterworth-Heinemann, 2001. ISBN 0 7506 43927 .
PAGE, Stephen J. Tourism Management: An Introduction. 4th ed. Oxford: Butterworth-Heinemann, 2011. ISBN 978-0-08-096932-9 .