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David Meerman Scott (2016). “The New Rules of Sales and Service: How to Use Agile Selling, Real-Time Customer Engagement, Big Data, Content, and Storytelling to Grow Your Business”, p.116, John Wiley & Sons
"Blood-Boiler of the Day: TV Show Canceled for Having Too Many Smart, Interesting Girl Characters" by Inkoo Kang, www.indiewire.com. December 19, 2013.