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Master closer : a master class in advanced selling
Fenton, John, (2009)
Sell without selling : lessons from the jungle for sales success
Levine, Terri, (2008)
Selling sucks : how to stop selling and start getting prospects to buy !
Rumbauskas, Frank J., (2007)
Guerrilla marketing for consultants : breakthrough tactics for winning profitable clients
Levinson, Jay Conrad, (2005)