@article{oai:akita-pu.repo.nii.ac.jp:00000803,
 author = {Takahashi, Mamoru and Shucart, Stephen and Takahashi, Mamoru and Shucart, Stephen},
 issue = {19},
 journal = {秋田県立大学総合科学研究彙報, Akita Prefectural University RECCS bulletin},
 month = {Mar},
 pages = {33--37},
 title = {A comparative analytic study of graded readers},
 year = {2018}
}