AN ONLINE INTERACTIVE COMPETITION MODEL FOR E-LEARNING SYSTEM. Nigerian Journal of Technology, [S. l.], v. 34, n. 3, p. 548–555, 2015. DOI: 10.4314/njt.343.975. Disponível em: https://nijotech.com/index.php/nijotech/article/view/975. Acesso em: 16 apr. 2026.