J.B. Bilesanmi Awoderu. “A Causal Model of Nigerian Teacher Characteristics and Their High School Students’ Achievement in Some Ecological Concepts”. The Ethiopian Journal of Education 20, no. 2 (December 1, 2000): 73–89. Accessed January 10, 2025. http://ejol.aau.edu.et/index.php/EJE/article/view/11140.