SINA , A. O.; AHMED, K. I. Assessment of smartphone usage among students for effective learning during Covid-19 pandemic lockdown in senior secondary schools in Ogun State, Nigeria. Kashere Journal of Education , [S. l.], v. 4, n. 1, p. 36–44, 2023. Disponível em: https://journals.fukashere.edu.ng/index.php/kje/article/view/1030. Acesso em: 14 mar. 2026.