A. Oribabor, O. “Challenges in the Teaching and Learning of Concord in the Use of English Language”. American Scientific Research Journal for Engineering, Technology, and Sciences 3, no. 1 (April 29, 2013): 75–85. Accessed May 2, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3610.