1
2
Published in 1996
Repository
3
4
Published in 1992
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5
Published in 1989
Repository
6
Published in 1993
Repository
7
Published in 2005
Repository
8
9
Published in 1984
Repository
10
by Ullaury Rodríguez, José; Guamán Jiménez, Ricardo; Mendoza Zambrano, Heriberto; Linzan Macías, Lenín
Published in 2004
Repository