Pornrattananukul, A. . (2013) “The Production Space of Thai Learners’ Mandarin Chinese and Thai Tones”, Journal of Sinology (วารสารจีนวิทยา), 7, pp. 17–27. available at: https://so16.tci-thaijo.org/index.php/JSINO/article/view/2821 (accessed: 3 December 2025).