41
42
43
44
45
46
47
48
49
bachelorThesis
Published in 2007
Repository Repositorio Universidad San Francisco de Quito
50
51
Published in 1998
Repository
52
53
bachelorThesis
Published in 2014
Repository Repositorio Universidad San Francisco de Quito
54
55
Published in 2009
Repository
56
57
Published in 1991
Repository
58
Published in 1983
Repository
59
Published in 1999
Repository
60