Okono UM. The Articulation Of Twelve Pure Vowels In The English Language Of Nigerian Undergraduates: A Case Study Of The Department Of English Akwa Ibom State University: Sapientia Global Journal of Arts, Humanities and Development Studies (SGOJAHDS), Vol 6, No 4. ADI [Internet]. 2024 May 2 [cited 2024 Dec. 22];. Available from: https://publications.afrischolar.net/index.php/home/article/view/153