著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) 冷水 來生,About introduction of sign language to children with communication disorders : A study on factors which affect easiness of acquisition by a case of intellectually disabled child,Proseedings of the 42nd Annual Meeting of the Japanese Association of Special Education,,,2004,,,589,https://cir.nii.ac.jp/crid/1010282256787886084,