4Social Media Examiner, Social Media Marketing Industry Report, May, 2014.
5Nielsen, Paid Social Media Advertising-Industry Update and Best Practices, 2013.
6Measuring Social Media Success, 0CT25, 2011, Media Post, http: //www. mediapost, corn/ publications/article/160986/measuring-social-media-success, html#axzz2d2mzSADn.
7Social Media Insider: 100 ways To Measure Social Media, Nov. 17, Learning Ace, http: //www. learningace, com/doc/5560194/f271a2210Idffc5cO4fflb12f3bbdSO5/social-media-insider_ 100 - ways-to-measure-social-media.
8Chris Murdough, " Social Media Measurement: It's Not hnpossible," Journal of Interactive Advertising, vol. 10, no. 1, 2009, p. 94.
9Richard Pentin: A New Framework For Measuring Social Media Activity. TMW, May 2010.
10Donna L. Hoffman, Marek Fodor, Can you measure the ROI of your social media marketing," Management Review, vol. 52, no. 1, 2010, p. 44.