Tsukuba Language Group. (1994). Situational functional Japanese (Second edition.). Tokyo: Bonjisha.
シカゴスタイル引用形Tsukuba Language Group. Situational Functional Japanese. Second edition. Tokyo: Bonjisha, 1994.
MLA引用形式Tsukuba Language Group. Situational Functional Japanese. Second edition. Tokyo: Bonjisha, 1994.
警告: この引用は必ずしも正確ではありません.