Pichetsilpa, P. . (2007) “Everyday Chinese Speaking Proficiency Guidelines: A Case Study of Chulalongkorn University Students”, Journal of Sinology (วารสารจีนวิทยา), 1, pp. 119–139. available at: https://so16.tci-thaijo.org/index.php/JSINO/article/view/2684 (accessed: 3 December 2025).