1.
Crystal D, Cambridge Books Online EBS. English as a Global Language [Internet]. Cambridge: Cambridge University Press; 2012. Available from: https://go.openathens.net/redirector/city.ac.uk?url=https://doi.org/10.1017/CBO9781139196970
2.
Fromkin V, Rodman R, Hyams NM. An introduction to language. 10th ed., International ed. Australia: Wadsworth, Cengage Learning; 2014.
3.
Hitchings H. The language wars: a history of proper English. 1st Picador ed. New York: Picador; 2012.
4.
Jenkins J. Global Englishes: a resource book for students. Third edition. London: Routledge, Taylor & Francis Group; 2015.
5.
Jenkins J. Global Englishes: a resource book for students [Internet]. Third edition. London: Routledge, Taylor & Francis Group; 2015. Available from: https://ebookcentral.proquest.com/lib/city/detail.action?docID=1770601
6.
Larsen-Freeman D, Anderson M. Techniques & principles in language teaching. 3rd ed. Oxford: Oxford University Press; 2011.
7.
Kirkpatrick A. World Englishes: implications for international communication and English language teaching. Cambridge: Cambridge University Press; 2007.
8.
Melchers G, Shaw P. World Englishes. Second edition. London: Routledge; 2013.
9.
Mooney A, Evans B. Language, society and power: an introduction. Fifth edition. London: Routledge, Taylor & Francis Group; 2019.
10.
Parrott M. Grammar for English language teachers. 2nd ed. Cambridge, UK: Cambridge University Press; 2010.
11.
Richards JC, Rodgers TS, Cambridge Books Online EBS. Approaches and Methods in Language Teaching [Internet]. Cambridge: Cambridge University Press; 2001. Available from: http://0-dx.doi.org.wam.city.ac.uk/10.1017/CBO9780511667305
12.
Holmes J. An introduction to sociolinguistics. 4th ed. Harlow: Pearson; 2013.
