1
Published in 1997
Repository
2
3
Published in 2009
Repository
4
5
6
7
8
Published in 1998
Repository
9
by Galarza, David; Garcés, Sandra; Velásquez, José; Sánchez Arizo, Víctor Hugo; Zambrano Mendoza, José Luis
Published in 2016
Repository
10
11
Published in 2008
Repository
12
Published in 2018
Repository
13
14
by Oyarzún, Pedro J.; Chamorro, Fernando; Córdova, Juan J.; Merino, Fausto; Valverde, Franklin; Velásquez, José
Published in 2002
Repository
15
by Navarrete Cedeño, José Bernardo; Cañarte Bermúdez, Ernesto; Chérrez, César; Velásquez, José; García, Jefferson; Reyes, Carlos
Published in 2016
Repository
16
Published in 2006
Repository
17
Published in 2002
Repository
18
19
20
Published in 1993
Repository