标题：804 精神薄弱児の言語とコミュニケーション(20) : 書きことばの構造分析(20.精神薄弱(1),日本教育心理学会第5回総会部門別研究発表要旨・討論の概要) [in Japanese] 804 Language and communication in the mentally retarded (20) : A study of the structure of written language(20.Mental deficienty (1),PROCEEDINGS OF THE FIFTH ANNUAL CONVENTION OF JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY PAPERS AND THE SUMMARIES OF DISCUSSIONS) [in Japanese]
