1. Brittain, L. (1979). Creativity, art and the young child. New York: Macmillan.
2. Cherry, C. (1972). Creative art for the developing child. Belmont, CA: Pitman Learning.
3. Coffey, C. (1968). A developmental study of aesthetic preferences for realistic and nonobjective paintings. PhD dissertation, University of Massachusetts.
4. Cohen, E.P. & Gainer, R.S. (1995). Art: Another language for learning. Portsmouth, NH: Heinemann.