PHONPHANICH, S. H.; BURUSPHAT, S. The Positive and Negative Effects of Tonal L1 on the Acquisition of Tonal L2: A Case of the Standard Thai Tones and the Chinese Zhuang Learners. LEARN Journal: Language Education and Acquisition Research Network, [S. l.], v. 14, n. 2, p. 28–58, 2021. Disponível em: https://so04.tci-thaijo.org/index.php/LEARN/article/view/253260. Acesso em: 4 may. 2024.