Dr. Miguel Ruiz, Urano

$7.61

Dr. Lair Riveiro, Urano

$7.00

Virginia Satir, Concepto

$6.00

Walter Riso, Planeta

$17.95

M. Ines Bernal, Intermedio

$10.00

Fernando Trias de Bes, Empresa Activa

$20.00

Dale Carnegie, Sudamericana

$18.00

Ismael Cala, Aguilar

$24.95

Jaime Lopera, Diana

$17.95

Gaston Maldonado, San Pablo

$7.00

Ryan Holyday, Conecta

$23.95

Gisela B. Conde Huerta, Nancy Margarita

$8.50

Jaime Lopera, Diana

$22.95

J. Canfield - M.v. Hansen, Hci

$5.43

Ignacio Larrañaga, San Pablo

$5.00