Harmer, J. (2007). The Practice of English Language Teaching. Harlow: Pearson Longman.
Hong, L. (2002). Using games in teaching English to young learners. The Internet TESL Journal, 8(8). Retrieved January 29, 2014, from http://iteslj.org/Lessons/Lin-UsingGames.html.
Lee, K. (2000). English teachers' barriers to the use of Computer-Assisted Language Learning The Internet TESL Journal, 6(12). Retrieved January 29, 2014, from http://iteslj.org/Articles/Lee-CALLbarriers.html.
Wright, A., Betteridge, D., & Buckby, M. (2006). Games for Language Learning (2nd ed.) Cambridge: Cambridge University Press.