@article{oai:waseda.repo.nii.ac.jp:00024987,
 author = {Toda, Takako and 戸田, 貴子},
 journal = {早稲田日本語教育学},
 month = {Feb},
 pages = {59--65},
 title = {音声教育と日本語能力},
 volume = {9},
 year = {2011}
}