@article{oai:juen.repo.nii.ac.jp:00006326,
 author = {布川,  和彦 and Nunokawa,  Kazuhiko},
 issue = {28},
 month = {Mar},
 pages = {1--12},
 title = {比の学習における小学生による説明と式の利用},
 year = {2013},
 yomi = {ヌノカワ, カズヒコ}
}