Effect of Instructional Models on Retention of Biology Concepts among Secondary School Students in Ogoja Education Zone, Cross River State, Nigeria. JOURNAL OF SPECIALIZED EDUCATION RESEARCH AND DEVELOPMENT , [S. l.], v. 1, n. 1, p. 12–21, 2025. DOI: 10.5281/zenodo.18750237. Disponível em: https://fuekjournals.org/index.php/JOSERD/article/view/222.. Acesso em: 16 apr. 2026.