Wayland, R., H. W. Kim, R. Meyer, and S. Chen. “Asymmetric Discrimination of Pitch Contours among Non-native Tone Listeners”. Language and Linguistics, vol. 42, no. 2, Dec. 2024, pp. 1-27, https://so04.tci-thaijo.org/index.php/joling/article/view/274395.