1. Al-Zahrani, A.S., 2015. Smartphones wandering at the MALL: a case study investigating the use of smartphones on English oral learning skills in a collaborative mobile-assisted language learning environment. Ed.D. thesis. Northern Illinois University. Available from: http://commons.lib.niu.edu/handle/10843/18640.
2. Başoğlu, E.B. and Akdemır, Ö., 2010. A Comparison of Undergraduate Students’ English Vocabulary Learning: Using Mobile Phones and Flash Cards. Turkish Online Journal of Educational Technology, 9(3), pp.1–7. Available from: http://www.tojet.net/articles/v9i3/931.pdf.
3. Chinnery, G.M., 2006. Going to the MALL: Mobile Assisted Language Learning. Language Learning & Technology, 10(1), pp.9–16. Available from: https://www.learntechlib.org/p/74432.
4. Cowan, M.R., 2015. The projected use of mobile applications for adult English language learners’ in class instruction. M.A. thesis. Indiana University of Pennsylvania. Available from: https://www.proquest.com/openview/15e66819fd26b695739eadd1b65277ac/.
5. Research trends in mobile assisted language learning from 2000 to 2012