Universidad Tecnológica de El Salvador

Jay Conrad Levinson

8 Book

Guerilla Marketing
Easy and Inexpensive Strategies for Making Big Profits from Your Small Business
Jay Conrad Levinson
Houghton Mifflin Harcourt, 2007
6 Book

Guerrilla Marketing for Consultants
Breakthrough Tactics for Winning Profitable Clients
Michael W. McLaughlin and Jay Conrad Levinson
Wiley, 2004