Livian Navarro Caro, Panapo

$1.20

Fe y Alegria, Estudios

$9.60

$14.40

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Norman E. Gronlund, Trillas

$34.91

Abel Cortese, Planeta

$30.00

Pablo Rios Cabrera, Cognitus

$9.13

Antonio Perez Esclarin, San Pablo

$6.00

A. Rubio Gil, Diaz de Santos

$33.60

Jose Gregorio Bello P., Panapo

$7.20

Antonio Perez Esclarin, San Pablo

$8.40

Luis Quintana, Mcgraw Hill

$12.00

Prof. Ramon Grau, Ediciones Grau

$7.20

$1.52

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00