[4]เก็บถาวร 2015-09-24 ที่ เวย์แบ็กแมชชีนExpedia Announces Agreement To Acquire Majority Of trivago, Expedia, Bellevue, 21 December 2012. Retrieved on 22 January 2015.
[4]เก็บถาวร 2015-09-24 ที่ เวย์แบ็กแมชชีนExpedia Announces Agreement To Acquire Majority Of trivago, Expedia, Bellevue, 21 December 2012. Retrieved on 22 January 2015.
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[3]ํYahoo Finance:Expedia’s trivago acquisition raises advertising revenue growth, Yahoo Finance, 30 April 2014. Retrieved 21 January 2015.
info.yahoo.com
[3]ํYahoo Finance:Expedia’s trivago acquisition raises advertising revenue growth, Yahoo Finance, 30 April 2014. Retrieved 21 January 2015.