Presença plus : modelo de identificação de presença social em ambientes virtuais de ensino e aprendizagem - Helvia P. P. Bastos (2012)

Text Mining Indicators of Affect and Interaction: A Case Study of Students' Postings in a Blended-Learning Course of English for Specific Purposes. - Helvia P. P. Bastos; Magda Bercht; Leandro Krug Wives; Júlia Kambara-Silva; Yasmmin Martins (WorldCIST, 2013)

Dictionaries on Smartphones: Learners' Assessment of Features and Potential of Dictionary Apps as Pedagogical Tools. - Helvia P. P. Bastos; Gabriel P. F. Machado (WorldCIST (2), 2016)