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. Published online May 2, 2024. doi:10.60951/afrischolar-153