ZHENG, Dongping; YOUNG, Michael F.; BREWER, Robert A.; WAGNER, Manuela. Attitude and Self-Efficacy Change: English Language Learning in Virtual Worlds. CALICO Journal, [S. l.], v. 27, n. 1, p. 205–231, 2013. DOI: 10.11139/cj.27.1.205-231. Disponível em: https://journal.equinoxpub.com/Calico/article/view/17288.. Acesso em: 16 jul. 2024.