Assessment of Teacher’s Professional Competence, Teacher’s Teaching Experience on the Implementation of Environmental Education Curriculum in Cross River State, Nigeria. Journal of Educational and Social Research, London, U.K., v. 4, n. 6, p. 521, 2014. Disponível em: https://www.richtmann.org/journal/index.php/jesr/article/view/4121.. Acesso em: 24 nov. 2024.