EKPO, G. U. A.; AZUNWENA, S. 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, [S. l.], v. 4, n. 2, p. 151–155, 2023. Disponível em: https://fnasjournals.com/index.php/FNAS-JMSE/article/view/168. Acesso em: 27 jul. 2024.