RATLIFF III, John B. PRODUCING FOREIGN LANGUAGE STUDY MATERIALS ON THE XEROX STAR. CALICO Journal, [S. l.], v. 3, n. 3, p. 21–25, 2013. DOI: 10.1558/cj.v3i3.21-25. Disponível em: https://journal.equinoxpub.com/Calico/article/view/1824.. Acesso em: 16 jul. 2024.