| 1 | Harmer, J. (2015). The Practice of English Language Teaching (5th ed.). Pearson. |
| 2 | Richards, J. C., & Renandya, W. A. (Eds.). (2002). Methodology in Language Teaching: An Anthology of Current Practice. Cambridge University Press. |
| 3 | Celce-Murcia, M., Brinton, D. M., Snow, M. A., & Bohlke, D. (2014). Teaching English as a Second or Foreign Language (4th ed.). National Geographic Learning. |
| 4 | Nation, I. S. P., & Newton, J. (2009). Teaching ESL/EFL Listening and Speaking. Routledge. |
| 5 | Nation, I. S. P. (2009). Teaching ESL/EFL Reading and Writing. Routledge. |