Carol Ann Tomlinson (2001) How to Differentiate Instruction in Mixed-Ability Classrooms. Association for Supervision & Curriculum Development. Available at: https://ebookcentral.proquest.com/lib/unmc-ebooks/reader.action?docID=3002067&ppg=10.
H., K. and Y., K. (no date) ‘Exploring Smartphone Applications for Effective Mobile-Assisted Language Learning’, 15(1), pp. 31–57. Available at: http://kmjournal.bada.cc/?page_id=99#.
Harmer, J. (2015) The practice of English language teaching. 5th ed. Harlow, Essex: Pearson Education.
Hedge, T. (2000) Teaching and learning in the language classroom. Oxford: Oxford University Press.
J., S. (2016) ‘Selecting and Evaluating Mobile Apps for Language Learning’, in The international handbook of mobile-assisted language learning. Central Radio & TV University Press, pp. 161–179. Available at: http://www.apacall.org/member/sonjb/research.html#chapters.
McGrath, I. (2002) Materials evaluation and design for language teaching. Edinburgh: Edinburgh University Press.
Mishan, F. and Timmis, I. (2015) Materials development for TESOL [electronic resource]. Edinburgh: Edinburgh University Press. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=4306117.
Nunan, D. (1988) Syllabus design. Oxford: Oxford University Press.
Opoku-Amankwa, K., Brew-Hammond, A. and Kofigah, F.E. (2011) ‘What is in a textbook? Investigating the language and literacy learning principles of the “Gateway to English” textbook series’, Pedagogy, Culture & Society, 19(2), pp. 291–310. Available at: https://doi.org/10.1080/14681366.2011.582264.
Reinders, H. (2006) ‘An evaluative checklist for self-access materials’, ELT Journal, 60(3), pp. 272–278. Available at: https://doi.org/10.1093/elt/ccl007.
Sheldon, L.E. (1988) ‘Evaluating ELT textbooks and materials’, ELT Journal, 42(4), pp. 237–246. Available at: https://doi.org/10.1093/elt/42.4.237.
Tomlinson, B. (2011) Materials development in language teaching. 2nd ed. Cambridge: Cambridge University Press. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=674679.
Tomlinson, B. (2012) ‘Materials development for language learning and teaching’, Language Teaching, 45(02), pp. 143–179. Available at: https://doi.org/10.1017/S0261444811000528.
Tomlinson, B. and ebrary, Inc (2013) Applied linguistics and materials development [electronic resource]. London: Bloomsbury Academic. Available at: http://site.ebrary.com/lib/unmc/Doc?id=10632601.