LIVINGSTONE, Kerwin A. Speech and Gesture in Classroom Interaction: A Case Study of Angola and Portugal. Revista Internacional de Lenguas Extranjeras / International Journal of Foreign Languages, Tarragona, n. 4, p. 65–96, 2015. DOI: 10.17345/rile4.698. Disponível em: https://www.revistes.urv.cat/index.php/rile/article/view/698.. Acesso em: 17 aug. 2026.