11. Pragmatic development in a second language Kasper, Gabriele. Malden, MA ; Blackwell Pub., c2002. ENG486
12. Teaching English as a second or foreign language Australlia : National Geographic Learning : c2014. ENG360
15. Language aptitude: advancing theory, testing, research and practice New York, NY : Routledge, 2019. ENG364
16. Key topics in second language acquisition Cook, Vivian, 1940-2021, Bristol, UK : Multilingual Matters, [2014] ENG103
17. First and second language acquisition: parallels and differences Meisel, Jürgen M., Cambridge, United Kingdom : Cambridge University Press, 2011. CHI379
18. Understanding second language acquisition Ortega, Lourdes. London : Hodder Education, 2009. ENG364
20. World Englishes: the study of new linguistic varieties Mesthrie, Rajend. Cambridge, UK ; Cambridge University Press, 2008. ENG450
