Ul Husnah, N., and E. Surya. “The Effectiveness of Think Talk Write Learning Model in Improving Students”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 34, no. 2, June 2017, pp. 1-12, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7531.