Livian Navarro Caro, Panapo

$1.20

Miguel Del Cura, Paraninfo

$45.60

Aldebaran Contreras, Davide Publicidad

$8.40

Abel Cortese, Planeta

$30.00

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

$1.51

Prof. Ramon Grau, Ediciones Grau

$7.20

Pablo Rios Cabrera, Cognitus

$9.13

Fe y Alegria, Estudios

$9.60

H. Reichmann, Thomson

$42.00

Antonio Luis Cardenas, Dasa

$4.80

$10.44

Antonio Perez Esclarin, San Pablo

$8.40

Victor Colina, Biosfera

$9.24

L. Sagols - J. Linares, Mcgraw Hill

$25.20