@article{oai:niigata-u.repo.nii.ac.jp:00027406, author = {Takahashi, Ayumi}, journal = {新潟大学言語文化研究, 新潟大学言語文化研究}, month = {Jun}, pages = {39--48}, title = {Self-perception of English Ability: Is it related to proficiency and/or class performance?}, volume = {14}, year = {2009} }