UDONSA, A. E. Trend on Students’ Performance in Mathematics at the Senior Secondary Certificate Examination in Nigeria. Journal of Research in Education and Society (JRES) , [S. l.], v. 6, n. 2, p. 14–21, 2015. Disponível em: http://icidr.org.ng/index.php/Jres/article/view/1425. Acesso em: 19 sep. 2024.