Mutsurō Kai

1939

• Dōshi, jodōshi no mondaiten
• Genji monogatari no bunshō to hyōgen
• Genji monogatari no bunshō to kenkyū
• Kokugo
• Shūsen chokugo no kokugo kokuji mondai
• Yomitoki Genji monogatari
• 明治書院精選国語辞典