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Brilliant pitch : what to know, do and say to make the perfect pitch
Varga, Shaun, (2009)
The 800-pound gorilla of sales : how to dominate your market
Guertin, Bill, (2010)
Sales mastery : the sales book your competition doesn't want you to read
Bauer, Chuck, (2011)
How to sell with NLP : the powerful way to guarantee your sales success
Hutchinson, Pat, (2010)