Udoka, Dr. Susanna T. “Tautology in Written and Spoken English of Undergraduate Students of University of Calabar”. American Journal of Language, Literacy and Learning in STEM Education (2993-2769) 2, no. 3 (March 28, 2024): 587–594. Accessed July 6, 2024. https://grnjournal.us/index.php/STEM/article/view/3951.