@book{oai:waseda.repo.nii.ac.jp:00067387,
 author = {Kinoshita, Naoko and Mohri, Takami and Sano, Kaori},
 month = {},
 publisher = {Center for Japanese Language, Waseda University, 早稲田大学日本語教育研究センター},
 title = {Steps in Japanese for Beginners 2},
 year = {2022}
}