DIRI, Erepamowei Ayibakuro; UDO, Elisha Abel. Effect of Improvised Instructional Materials on Students’ Academic Achievement in Mathematics in Bayelsa State, Nigeria. Journal of Research in Education and Pedagogy, [S. l.], v. 2, n. 1, p. 117–123, 2025. DOI: 10.70232/jrep.v2i1.34. Disponível em: https://spm-online.com/jrep/index.php/journal/article/view/34.. Acesso em: 9 mar. 2025.