Bloom, B. S., Engelhart, M. D., Furst, E. J.Hill, W. H., and Krathwohl, D. R.Taxonomy of educational objectives. Handbook 1, Cognitive domain. New York: McKay1956.
2.
Engelhart, M. D.Improving classroom testing. What Research Says to the Classroom Teacher No. 31. Washington, D.C.: National Education Association, 1964.
3.
Executive Committee. Cooperative study in general education. Washington, D.C.American Council on Education , 1947.
4.
Krathwohl, D. R., Bloom, B. S., and Masia, B. B.Taxonomy of educational objectives. Handbook 2, Affective domain . New York: McKay, 1964 .
5.
Smith, E. R., Tyler, R. W. , and Staff. Appraising and recording student progress . New York: Harper Brothers , 1942. (The Eight Year Study of the Progressive Education Association.)
6.
Tyler, R. W.Basic principles of curriculum and instruction. Chicago: University of Chicago Press, 1950.
