KIARIE, S. M. Influence of Teachers’ Perceptions and Competences on Students’ Achievement and Perceptions in Environmental Education in Secondary School Biology in Gilgil Division Nakuru District, Kenya. The International Journal of Humanities & Social Studies, [S. l.], v. 4, n. 2, 2016. Disponível em: https://internationaljournalcorner.com/index.php/theijhss/article/view/125894. Acesso em: 23 jul. 2024.