MEZE, M. E. Comparative analysis of the impact of pre and post covid-19 on academic achievement of post primary school students in Southeast Nigeria. Strata International Journal of Social Issues, [S. l.], v. 1, n. 2, p. 129–151, 2024. DOI: 10.59631/sijosi.v1i2.243. Disponível em: https://journals.stratapersada.com/index.php/sijosi/article/view/243. Acesso em: 19 apr. 2026.