Gabu Joihin, E. M., D. B. Loo, E. Hungyo, and A. Sundaresan. “Exploring Identity through Engagement: Four Cases of EFL University Students”. Journal of Studies in the English Language, vol. 12, no. 1, Dec. 2017, pp. 1-37, https://so04.tci-thaijo.org/index.php/jsel/article/view/88184.