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2.
Dunn, L. M.Peabody Picture Vocabulary Test. Minneapolis, Minn.: American Guidance Service, 1959.
3.
Frostig, Marianne, and David Home. The Frostig Program for the Development of Visual Perception. Teacher's ed. Chicago, Ill.: Follett, 1964.
4.
Gates, Arthur I., and Walter H. MacGinitie. Gates-MacGinitie Reading Tests. New York, N.Y.: Teachers College Press, Columbia University, 1965.
5.
Getman, G. N.The Physiology of Readiness. Minneapolis, Minn.: Programs to Accelerate School Success, 1964.
6.
Kephart, Newell C.The Slow Learner in the Classroom. Columbus, Ohio: Charles E. Merrill, 1967.
7.
Wepman, Joseph. Auditory Discrimination Test. Chicago, Ill.: Language Research Associates, 1958.
8.
Winter Haven Lions Publications Committee.Perceptual Testing and Training for First-Grade Teachers. Winter Haven, Fla.: Winter Haven Lions Club Research Foundation, 1967.
