Vol. 50 No. 50 (2019): Year 19, #50, july-december 2019

View Vol. 50 No. 50 (2019): Year 19, #50, july-december 2019

Published: 2020-01-27

Editorial

Editorial

Jenny Lisbeth Lozano

11
- PDF (Spanish)

Articles

The voices and the echoes

Alfinio Flores Peñafiel, Ph. D.

13-18
- PDF (Spanish)
Research applied to market studies

Luis Antonio Tobar, Lic.

19-30
- PDF (Spanish)
Teacher training in El Salvador: implications in salvadoran education

Óscar Luna, Jeser Caleb Candray

31-60
- PDF (Spanish)
The lands with a coffee vocation and the Martinato 1933: Genesis of the Municipality of Congo, Department of Santa Ana

Luis Alberto Martínez Marín

61-69
- PDF (Spanish)
Social Network Analysis: Identifying Virtual Communities on Twitter

James Humberstone

70-81
- PDF (Spanish)
Use of visual programming technologies for the development of mobile applications. Cases Universidad Francisco Gavidia – UFG

Claudia Reneé Meyer, Víctor Miguel Cuchillac

82-107
- PDF (Spanish)
Multidisciplinary Research and Education for the Reduction of Migration Needs: A first case study

Rainer Christoph, Ángel Hernández, Romeo Muñoz, Jonathan Ventura, Wolfgang Büscher

108-122
- PDF (Spanish)