Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKANO Noboru and YAMAMOTO Yuji,Relational approach to design of physical education class,Bulletin of Japanese Association of School Education,09139427,Japanese Association of School Education,2012,27,0,80-92,https://cir.nii.ac.jp/crid/1390001205780188672,https://doi.org/10.20576/bojase.kj00009391510