Carreño, Kingkolor

$7.20

$14.40

Luis Quintana, Mcgraw Hill

$12.00

Victor Colina, Biosfera

$9.24

H. Reichmann, Thomson

$42.00

Pablo Rios Cabrera, Cognitus

$9.13

A. Rubio Gil, Diaz de Santos

$33.60

Antonio Perez Esclarin, San Pablo

$6.00

Jose Gregorio Bello P., Panapo

$7.20

Ana Ponce de Leon, Ccs

$14.40

Miguel Del Cura, Paraninfo

$45.60

$10.44

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

$6.07

Fe y Alegria, Estudios

$9.60