Jose Aguilar Gorrondona, Ucab

$18.78

Jose Aguilar Gorrondona, Ucab

$12.00

Hector R. Peñaranda Q., Ediluz

$15.75

Omar Rodriguez Aguero, Atenea

$8.60

Carmen Sue Espinoza, Universidad de Carabobo

$16.18

Jose L. Villegas M., Funeda

$4.80

Enrique Urdaneta F., Academia de Ciencias

$8.40

Hector R. Peñaranda Q., Cpluz

$12.00

A. Rengel - Romberg, Organizacion Capriles

$36.51

Gert Kummerow, Mcgraw Hill

$12.00

Miguel Jacir H., Livrosca

$11.11

Federico Puig Peña, Atenea

$12.03

Santiago Hernandez, Mobilibros

$8.40

Mary Sol Grateron Garrido, Paredes

$15.60

$13.50