José Antônio Oliveira, Igor Alberto Cruz, and Kátia Aparecida Aquino. 2021.
 Ecoeco: digital tool for solid waste teaching from the Critical Meaningful Learning perspective. In <em>Proceedings of the 6th Congress on Technologies in Education</em>, August 24, 2021, Evento Online, Brasil. SBC, Porto Alegre, Brasil, 275-284.