标题:社会的地位の低い児童の人格的特性 : 13.学級構造 [in Japanese] Personality characteristics of children with few soclometnc chorces. : LIST OF PAPERS PRESENTED AT THE THIRD ANNUAL CONVENTION OF THE JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY October 17-21,1961,Nagoya : Division 6 : Structure of Classroom [in Japanese]