Marco Aurelio Michelli, Ediciones Macchi

Andres Augusto Rodriguez

Berta E. Madrigal Torres, Mcgraw Hill

F. Mochon - A. Rambla, Mcgraw Hill

Brian Tracy, Aguilar

K. Grichnik - C. Winkler, Mcgraw Hill

L. Blank - Anthony T., Mcgraw Hill

A. Chiang y K. Wainwright, Mcgraw Hill

Steven J. Spear, Mcgraw Hill

A. Diaz - V. Aguilera, Mcgraw Hill

Armando J. Gamez Ledezma, Biosfera

K. Allen - E. Meyer, Mcgraw Hill