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Tono, Yukio & Yasutake Ishii. 2018. "Investigating Japanese EFL Learners' Overuse/Underuse of English Grammar Categories and Their Relevance to CEFR Levels", in Proceedings of the 4th Asia Pacific Corpus Linguistics Conference, ed. Y. Tono & H. Isahara, pp. 160-165,

Tono, Yukio. 投野由紀夫. 2018. 『ネイティブの句動詞』 アスク出版.