1
Published in 1988
Repository
2
3
Published in 1989
Repository
4
5
6
7
Published in 1983
Repository
8
Published in 1990
Repository
9
10
by Paucar, Betty; Gallegos, Patricio; Nieto C., Carlos; Córdova, Juan J.; Rodríguez I., Luis F.; Ochoa L., José; Williams, Roger
Published in 2000
Repository
11
Published in 1994
Repository
12
13
Published in 1990
Repository
14
Published in 1987
Repository
15
16
17
18
19
Published in 1994
Repository
20