Okogu, J. O. “Evaluation Techniques As Component of Teachers’ Competencies for the Teaching of Social Studies in Nigerian Tertiary Institutions”. Journal of Research in Education and Society (JRES) 3, no. 3 (December 1, 2012): 15–18. Accessed September 19, 2024. http://icidr.org.ng/index.php/Jres/article/view/1298.