Zais, R. S. (1976). Curriculum: Principles and foundations. Thomas Y. Crowell Company.
Tohutoru Kātū ChicagoZais, Robert S. Curriculum: Principles and Foundations. New York: Thomas Y. Crowell Company, 1976.
Tohutoro MLAZais, Robert S. Curriculum: Principles and Foundations. Thomas Y. Crowell Company, 1976.
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