1. New Directions in Teaching Secondary School Science, Rand McNally and Co., Chicago, 1969, p. 1.
2. , and Bertram , Taxonomy of Educational Objectives Handbook II: Affective Domain, David McKay Co., New York, 1964, pp. 95–97.
3. Curriculum, Cognition, and Educational Measurement
4. A cognitive preference examination using chemistry content
5. Magnetic gas circulation pump for pressure reactors