1. Gao, J. (2014). International students’ use of Chinese metadiscourse markers. Journal of Nanjing Institute of Technology (social Science Edition), 14, 20–25.
2. Grabe, W., & Kaplan, R. B. (1997). On the writing of science and the science of writing: Hedging in science text and elsewhere. Research in Text Theory, 24, 151–167.
3. Hu, G., & Cao, F. (2011). Hedging and boosting in abstracts of applied linguistics articles: A comparative study of English-and Chinese-medium journals. Journal of Pragmatics, 43, 2795–2809.
4. Huang, Q., & Yang, C. C. (2014). A comparative study of the use of metadiscourse between English and Chinese news features. Journal of xi’an International Studies University, 22, 1–5.
5. Hyland, K. (2018). English for specific purposes, some influences and impacts. In A. Gao, C. Davison, & C. Lung (Eds.), The international handbook of English language teaching (2nd ed.). Springer.