Anyadighibe, J. A. ., G. S. . Etim, E. . Aniebiet, J. L. . Kajang, and F. A. . Ekom. “Outdoor Advertising and Customer Patronage of Telecommunication Data Bundles”. Nigerian Academy of Management Journal, vol. 16, no. 2, June 2021, pp. 53-67, http://namj.tamn-ng.org/index.php/home/article/view/149.