@article{oai:kwansei.repo.nii.ac.jp:00028689,
 author = {Gamble, Craig and Bailey, Philip},
 issue = {23},
 journal = {言語教育研究センター研究年報, Annual Research Report of the Language Center},
 month = {Mar},
 pages = {47--60},
 title = {A Grading System to Improve Motivation in Japanese University English Communication Classes},
 year = {2020}
}