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    Chū-jōkyūsha no tame no sokudoku no Nihongo = rapid reading Japanese : improving reading skills of intermediate and advanced students /
    中・上級者のための速読の日本語 : Rapid reading Japanese : improving reading skills of intermediate and advanced students /
    by Oka, Mayumi, 1952-
    Published 2013
    Book
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    The great Japanese 30 no monogatari : jinbutsu de manabu Nihongo : chū-jōkyū /
    The great Japanese 30の物語 : 人物で学ぶ日本語 : 中上級 /
    by Ishikawa, Satoru
    Published 2016
    Book