BrownleeK. A., Statistical Theory and Methodology in Science and Engineering.John Wiley & Songs, 1961.
2.
OjemannRalph H., “The Significance of a Causal Orientation in Human Development,”Keeping Abreast of the Revolution in Education: A Report of the Twenty Eighth Educational Conference.American Council on Education, 1963.
3.
PiagetJean, Psychology of Intelligence.Paterson, New Jersey, Littlefield, Adams & Company, 1963.
4.
ShaftelFannie R., and ShaftelGeorge, Role-Playing for Social Values.Englewood Cliffs, New Jersey, Prentice Hall, 1967.
5.
ShaftelFannie R., and JohnMartha A., “An Investigation of Role Playing in Classroom Settings and Some Variables Related to It.”Publication in process.
6.
TabaHilda, Teaching Strategies and Cognitive Functioning in Elementary School Children.San Francisco State College, February 1966.