Soleimani, Hassan, et al. “Extroversion/Introversion/and/Test/Performance/of/Iranian/EFL/Students/on/Multiple-Choice/and/True/False/Reading/Comprehension/Test”. International Journal of English and Education, vol. 2, no. 2, Apr. 2013, pp. 211-24, https://ijee.org/ijee/article/view/1211.