Phonphanich, S. H. and Burusphat, S. (2021) “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, 14(2), pp. 28–58. Available at: https://so04.tci-thaijo.org/index.php/LEARN/article/view/253260 (Accessed: 4 May 2024).