1. Metadiscourse in L1 and L2 english;Ädel,2006
2. Just to give you kind of a map of where we are going: A taxonomy of metadiscourse in spoken and written academic English;Ädel;Nordic Journal of English Studies,2010
3. Metadiscourse: Diverse and divided perspectives;Ädel;Nordic Journal of English Studies,2010
4. Anthony, L. (2020). AntConc (Version 3.5.9) [Computer Software]. Tokyo, Japan: Waseda University. Available from https://www.laurenceanthony.net/software/antconc/.
5. Anthony, L. (2022). AntFileConverter (Version 2.0.2) [Computer Software]. Tokyo, Japan: Waseda University. Available from https://www.laurenceanthony.net/software/antfileconverter/.