Other Way of Making Business: A Virtual e-Commerce Community / CVN Platform. - Roberto Naranjo; Jorge Moreno; Luz Marina Sierra; Martha Mendoza (Computer Supported Activity Coordination, 2005)

Pronunciation learning system for the 32 vowel system of Nasa Yuwe language. - Roberto Naranjo; Laurent Besacier; Tulio Rojas; Egidio Marsico (SLTU, 2012)