Maikanti, S., J. Burkhardt, M. F. Yong, S. Husain, and O. Oludare. “Mispronunciation of High Front and Low Hausa Vowels Among the Yorùbá Speakers”. Malaysian Journal of Social Sciences and Humanities (MJSSH), Vol. 6, no. 7, July 2021, pp. 321 -35, doi:https://doi.org/10.47405/mjssh.v6i7.921.