E-government portals in central America: a preliminary evaluation and ranking (2011-2012). - Rodrigo Sandoval-Almazán; J. Ramón Gil-García; Nancy Karina Saucedo Leyva (ICEGOV, 2012)

Maturity and evolution of e-government portals in central America: a three-year assessment 2011-2013. - Rodrigo Sandoval-Almazán; Nancy Karina Saucedo Leyva; J. Ramón Gil-García (ICEGOV, 2013)