HIKA , M. Practices and Challenges of Teaching-Learning of the Practical Parts of Science in Preparatory Schools in Wollega. Journal of Science, Technology and Arts Research, [S. l.], v. 8, n. 4, p. 59–75, 2019. DOI: 10.20372/star.v8i4.05. Disponível em: https://journals.wgu.edu.et/index.php/star/article/view/702. Acesso em: 23 sep. 2024.