Cell-phone Instruction and Academic Achievements of Undergraduates During Covid-19 Pandemic in Delta and Rivers States, Nigeria. Regional Journal of Information and Knowledge Management, [S. l.], v. 7, n. 2, p. 87–103, 2022. DOI: 10.70759/mh18gh90. Disponível em: https://www.rjikm.org/index.php/rjikm/article/view/113. Acesso em: 26 oct. 2025.