ایمانی خوشخو، محمد حسین، پورجم علویجه، افسانه، و نادعلی پور، زهرا. ) 1394 (. مطالعات گردشگری. تهران: سازمان انتشارات جهاد دانشگاهی.
Xiang, Z., Pan, B. and Fesenmaier, D. R. (2013). “Search Engine Marketing for Tourism Destinations”. Draft Submitted to The Handbook of Internet Marketing.
Rosso, M.A., Jansen, B.J. and Fleming, S.W. (2009). “Using Google Adwords in the MBA MIS Course”. Journal of Information Systems Education.
Gonzalez, P., Moral, P. and Plaza, B. (2012). “Assessing the effectiveness of AdWords campaigns on website performance: the case of a tourist SME”. 11th Global Forum on Tourism Statistics. 14-16.
Jacobson, H. (2009). “Google Adwords for Dummies”. Wiley Publishing Inc. 2nd Edittion. Indiana.
Franklyn, D.J., Hyman, D.A. (2013). Trademarks as Search Engine Keywords: Much Ado About Something. Harvard Journal of Law & Tevhnology. Volume 26, Number 2.
Stone, B. (2010). Sure, It’s Big. But Is That Bad? N.Y. TIMES at BU1, see also Benjamin G. Edelman, Google’s Dominance — And What to Do About it, ACSBLOG (Oct. 3, 2011) at:
http://www.acslaw.org/acsblog/google%E2%80%99s-dominance-%E2%80%93-and-what-to-do-about-it.
See Cost-Per-Click Bidding, GOOGLE at:
http://support.google.com/adwords/bin/answer.py?hl=en&answer=2464960&topic=1713914&path=1713956-1713909&ctx=leftnav (last visited May 9, 2013).
Press Release, Google, Google Launches Self-Service Advertising Program (Oct. 23,2000), at:
http://www.google.com/press/pressrel/pressrelease39.html.
Advertising revenue made up 97% of Google’s first quarter revenues in 2011. Google Inc., Quarterly Report Form (10-Q), at 27 (Apr. 25, 2012), Available at:
http://investor.google.com/pdf/20120331_google_10Q.pdf.
Press Release, Google, Google Introduces New Pricing for Popular Self-Service Online Advertising Program (Feb. 20, 2002), http://www.google.com/press/pressrel/select.html.
Prescott, L. (2006). Hitwise US Travel Report. New Tork: Hitwise.
See, e.g., Check and Understand Quality Score, GOOGLE at:
https://support.google.com/adwords/answer/2454010?hl=en (last visited May 9, 2013); Understanding Ad Position, GOOGLE, http://support.google.com/adwords/answer/1722122 (last visited May 9,2013); Actual Cost-Per-Click (CPC), GOOGLE, http://support.google.com/adwords/answer/6297 (last visited May 9, 2013).
Xiang, Z, Pan, B. and Fesenmaier, D. R. (2016). "Benchmarking the Visibility of Websites in Google: Implications for Search Engine Marketing of Tourism Destinations". Tourism Travel and Research Association: Advancing Tourism Research Globally. 12.