1. Anthony, Laurence. 2022. AntConc (Version 4.0.5) [Computer Software]. Tokyo, Japan: Waseda University. Available from https://www.laurenceanthony.net/software.
2. Bennett, Gena R. 2010. Using Corpora in the Language Learning Classroom: Corpus Linguistics for Teachers. Michigan ELT.
3. Bieswanger, Markus. 2008. Varieties of English in Current English Language Teaching. Stellenbosch Papers in Linguistic 38: 27–47.
4. ———. 2012. Varieties of English in the Curriculum. In Codification, Canons and Curricula: Description and Prescription in Language and Literature, ed. Anne Schröder, Ulrich Busse, and Ralf Schneider, 359–371. Bielefeld: Aisthesis.
5. Bloomfield, Leonard. 1933. Language. London: Allen & Unwin.