UUPINDI, M. .; HAKO, A. N. . The use of teaching aids in environmental studies teaching and learning process: A case study of a selected school in Oshana Region. The Namibia CPD Journal for Educators, [S. l.], v. 5, p. 284–303, 2019. DOI: 10.32642/ncpdje.v5i0.1254. Disponível em: https://journals.unam.edu.na/index.php/NCPDJE/article/view/1254. Acesso em: 22 nov. 2024.