1. Aronson E Patnoe S (1997)Jigsaw Classroom(New York: Longman)
2. Barbosa RMN (1996)The influence of social interaction on young pupils' learningUnpublished PhD Thesis, University of East Anglia
3. Barbosa RMN Jófili Z (2002) Aprendizagem Cooperativa e Ensino de Quýmica: parceria que deu certo (Cooperative Learning and Chemistry Teaching: a valuable partnership). Proceedings of the XI ENEQ (National Meeting of Chemistry Teaching), Recife, Brazil, 8–11 October