Antonio Perez Esclarin, San Pablo

$7.30

$6.07

$10.44

Ana Ponce de Leon, Ccs

$14.40

Luis Quintana, Mcgraw Hill

$24.00

$14.40

Carreño, Kingkolor

$7.20

$1.52

Livian Navarro Caro, Panapo

$1.20

Dario Linares Hernandez, Dl Editoriales

$10.69

H. Reichmann, Thomson

$42.00

Pablo Rios Cabrera, Cognitus

$9.13

Victor Colina, Biosfera

$9.24

$10.20

Norman E. Gronlund, Trillas

$34.91