1

book
Published in 1992
Repository Repositorio Universidad Politécnica Salesiana
2

book
Published in 1992
Repository Repositorio Universidad Politécnica Salesiana
3

book
Published in 1992
Repository Repositorio Universidad Politécnica Salesiana
4

book
Published in 1999
Repository Repositorio Universidad Politécnica Salesiana
5

book
Published in 2005
Repository Repositorio Universidad Politécnica Salesiana
6

book
Published in 2005
Repository Repositorio Universidad Politécnica Salesiana
11

article
Published in 2012
Repository Repositorio Universidad Politécnica Salesiana
12

article
Published in 2012
Repository Repositorio Universidad Politécnica Salesiana
14

18

book
Published in 2020
Repository Repositorio Universidad Politécnica Salesiana