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An Experimental Study to Measure the Effects of the English Language Grammar Method of Teaching Mathematics on the Mathematics Performance of the Visually Impaired

Robert Earl Sharpton

出版	Michigan State University. Instructional Development and Technology, College of Education., 1977
URL	http://books.google.com.hk/books?id=M1C_WEhJ6KkC&hl=&source=gbs_api