Wright, S. M. (1972). Teaching the number system to intermediate educable mentally retarded pupils through the use of variety of methods.
Chicago Style (17. basım) AtıfWright, Scott Mathews. Teaching the Number System to Intermediate Educable Mentally Retarded Pupils Through the Use of Variety of Methods. 1972.
MLA (9th ed.) AtıfWright, Scott Mathews. Teaching the Number System to Intermediate Educable Mentally Retarded Pupils Through the Use of Variety of Methods. 1972.
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