Alexis G. Perez, Fedupel

$12.52

M. Martinez Lurdez, Magrawhill

$30.00

Aura Bavaresco de Prieto, Luz

$13.83

Julian Rodriguez, San Pablo

$13.83

Marcos Fidel Barrera, Sypal

$13.56

L. Carrera - M. Vasquez, Panapo

$7.48

Aura Bavaresco de Prieto, Luz

$8.40

Fidias G. Arias, Episteme

$9.65

Carlos Sabino, Panapo

$6.55

Mario Tamayo y Tamayo, Limusa

$27.60

Margarita A. de Sanchez, Trillas

$39.47

Margarita A. de Sanchez, Trillas

$39.47

F. Kerlinger - H. Lee, Mcgraw Hill

$51.95

J. Hessen, Juceda

$9.60

Yilmar Campbell, Universidad Carabobo

$9.60