1. Bahlke , S. J. A study of the enhancement of creative abilities in elementary school children Unpublished masters thesis Purdue University 1967
2. Bahlke , S. J. Componential evaluation of creativity instructional materials Unpublished doctoral thesis Purdue University 1969
3. “Teaching creative thinking.”;Feldhusen;Elem. Sch. J,1969
4. Robinson , W. L. T. Taped-creativity-series versus conventional teaching and learning Unpublished masters thesis Atlanta University 1969