1
Published in 1999
Repository
2
Published in 2004
Repository
3
4
by Barrera, Víctor Hugo; Pumisacho, Manuel; Escudero, Luis; Yumisaca, Fausto; Monar B., Carlos; Norton, George W.; Alwang, Jeffrey; Sherwood, Stephen
Published in 2002
Repository
5
6
7
8
by Norton, George W.; Moore, Keith; Quishpe, David; Barrera, Víctor Hugo; Debass, Thomas; Moyo, Sibusiso
Published in 2005
Repository
9
Published in 2002
Repository
10