J.B. Bilesanmi Awoderu (2000) “A Causal Model of Nigerian Teacher Characteristics and Their High School Students’ Achievement in Some Ecological Concepts”, The Ethiopian Journal of Education, 20(2), pp. 73–89. Available at: http://ejol.aau.edu.et/index.php/EJE/article/view/11140 (Accessed: 10January2025).