Antonio Luis Cardenas, Dasa

$4.80

Frida Diaz Barriga Arceo, Mcgraw Hill

$36.00

Jose Gregorio Bello P., Panapo

$7.20

Livian Navarro Caro, Panapo

$1.20

Luis Quintana, Mcgraw Hill

$24.00

Carreño, Kingkolor

$7.20

Miguel Del Cura, Paraninfo

$45.60

Victor Colina, Biosfera

$9.24

Ana Ponce de Leon, Ccs

$14.40

Antonio Perez Esclarin, San Pablo

$8.40

$6.07

$14.40

L. Sagols - J. Linares, Mcgraw Hill

$25.20

Norman E. Gronlund, Trillas

$34.91

Prof. Ramon Grau, Ediciones Grau

$7.20