Bakri, R. A., Saiful , S., Ismail, H., Aeni, N. and AM, S. A. (2021) “The Power of Instructional Materials in Teaching Students’ Speaking Skill”, Celebes Journal of Language Studies, 1(1), pp. 77-87. Available at: http://harpressid.com/index.php/CJLS/article/view/38 (Accessed: 22October2021).