Kokusai Nihongo Fukyū Kyōkai. (2022). Kokusai nihongo fukyū kyōkai japanese for busy people (Revised 4th edition, Brand new edition.). Kodansha USA Publishing, LLC.
Chicagoスタイル(17版)引用形式Kokusai Nihongo Fukyū Kyōkai. Kokusai Nihongo Fukyū Kyōkai Japanese for Busy People. Revised 4th edition, Brand new edition. New York, NY: Kodansha USA Publishing, LLC, 2022.
MLA(9版)引用形式Kokusai Nihongo Fukyū Kyōkai. Kokusai Nihongo Fukyū Kyōkai Japanese for Busy People. Revised 4th edition, Brand new edition. Kodansha USA Publishing, LLC, 2022.
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