Olayinka, Awofadeju Peter, and Ewuola Philip Olubunmi. “ATTITUDE OF UNDERGRADUATE STUDENTS TO UNSOLICITED SMS ADVERTISING BY GSM OPERATORS”. IJRDO- Journal of Educational Research 4, no. 4 (May 18, 2019): 83-103. Accessed May 2, 2025. https://www.ijrdo.org/index.php/er/article/view/2877.