Effects of Real Specimens on Retention in Biology Concepts among Secondary School Students in Bomadi, Delta State, Nigeria. Federal University Gusau Faculty of Education Journal, [S. l.], v. 5, n. 4, p. 22–28, 2025. DOI: 10.64348/zije.202584. Disponível em: https://js.foefugusau.com.ng/index.php/foefujs/article/view/84. Acesso em: 2 mar. 2026.