1. Abijo Ayo 1981. An evaluation of the Comparative Education Study and Adaptive Centre (CESAC) Chemistry Programme M.Ed Dissertation, UnPublished, Ibadan: University of Ibadan.
2. Ajaja Patrick 1998. An Evaluation of a Differential Effectiveness of Ausbel, Burner, and Karplus Methods of Teaching Biology in Nigeria Secondary Schools. Ph.D Thesis, Unpublished, Benin: University of Benin.
3. Ajaja OP 2007. Teaching Methods Across Disciplines. Agbor: Allwell Publications.
4. Borich GD 2004. Effective Teaching Methods. Fifth edition. New Jersey: Pearson Merrill Prentice Hall.
5. Evans CS 1986. Philosophy of Science: The Natural Sciences in Christian Perspective. Illinois: Intervarsity Press.