PHETTONGKAM, H. Grammatical Errors in Spoken English of Undergraduate Thai Leaners in a Communicative Business English Course. LEARN Journal: Language Education and Acquisition Research Network, [S. l.], v. 10, n. 1, p. 95–118, 2017. Disponível em: https://so04.tci-thaijo.org/index.php/LEARN/article/view/135963. Acesso em: 17 may. 2024.