JANČAŘÍKOVÁ, K. Student’s portfolio – proper form of evaluation of environmental education (Reviewed version, 3/2007). Envigogika, Praha, Czech Republic, v. 2, n. 3, 2007. DOI: 10.14712/18023061.23. Disponível em: https://envigogika.czp.cuni.cz/index.php/Envigogika/article/view/23. Acesso em: 29 sep. 2020.