2411-9970 2411-9970 S2411-99702018000200122 Ecuador Cuba 00 08 2018 00 08 2018 7 16 122 150

2004 II 6 6 Educomunicacion.es. s.f 2003 2003 53 53 2004 32 1-2 1-2 2012 2014 Bogotá, Colombia 2013 2017 2015