WIDI WINARNI, E. The Influence of a “Natural Exploration” Approach in Developing Environmental Attitudes and Understanding of 3R Principles for Primary School Students. Eco-Thinking, [S. l.], v. 1, n. 1, 2016. Disponível em: https://journals.lib.sfu.ca/index.php/journal/article/view/990. Acesso em: 3 dec. 2024.