IDZELIS, Rolandas Vitalius F. The Interplay of Spontaneous (“Natural”) and Deliberate (“Artificial”) in the Study of International English. Kalbotyra, [S. l.], v. 47, n. 3, p. 22–38, 1998. Disponível em: https://www.zurnalai.vu.lt/kalbotyra/article/view/31389. Acesso em: 6 jul. 2025.