- Publication venue
- Universidad de Guayaquil
- Publication date
- 31/12/1986
- Field of study
NAN
- Publication venue
- Universidad de Guayaquil
- Publication date
- 30/06/1985
- Field of study
N
- Publication venue
- Universidad de Guayaquil
- Publication date
- 31/12/1994
- Field of study
N