Osasona, O. (2011) “Speech Intelligibility of Lecture Theatres in Obafemi Awolowo University, Ile-Ife, Nigeria”, Ife Journal of Technology, 20(1), pp. 25–33. Available at: http://ijt.oauife.edu.ng/index.php/ijt/article/view/76 (Accessed: 11 October 2025).