1
Published in 1974
Repository
2
Published in 1995
Repository
3
Published in 2017
Repository
4
Published in 1985
Repository
6
7
8
bachelorThesis
Published in 2010
Repository Repositorio Pontificia Universidad Católica del Ecuador
9
Published in 1992
Repository
10
bachelorThesis
Published in 2020
Repository Repositorio Escuela Superior Politécnica del Litoral
11
12
Published in 1984
Repository