Comparative Effectiveness of the Recommended Instructional Strategies on Students’ Environmental Knowledge in Social Studies in Osun State Middle Schools. Journal of Educational and Social Research, London, U.K., v. 6, n. 3, p. 45, 2016. Disponível em: https://www.richtmann.org/journal/index.php/jesr/article/view/9485.. Acesso em: 29 apr. 2024.