$2.40

Pablo Bravo, Biosfera

$23.76

Sergio Medina, Noriega

$24.02

Freddy Suarez Figueroa, Disutextos

$26.52

Elba Albujas Veliz, Biosfera

$22.44

$31.88

G. Katz - M. Katz, Mcgraw Hill

$6.00

Norma Odreman, Everest

$6.60

P. Izquierdo - C. Garcia, Salesiana

$7.12

$25.81

Luis E. Rincon, Girasol

$30.06

$16.80

Prof. Almery Ramallo, Actualidad

$23.68

Sofia Smeke M., Noriega

$20.59

Reinaldo Marin, Santillana

$11.39