Ekpo, Geraldine Umoh Amba, and Samuel Azunwena. “Sports Contingent Markets in Port Harcourt Metropolis: Challenges and Prospects With Instances from China”. Faculty of Natural and Applied Sciences Journal of Mathematics, and Science Education 4, no. 2 (October 31, 2023): 151–155. Accessed September 8, 2024. https://fnasjournals.com/index.php/FNAS-JMSE/article/view/168.