Hirofumi Aoki

1970

• Gaidobukku Nihongo bunpōshi
• Gokeisei kara mita Nihongo bunpōshi
• Nichi-Eigo no bunpōka to kōbunka
• Nihongo bunpō no rekishi to henka
• Nihongo bunpōshi kī wādo jiten
• Nihongo no kōzō henka to bunpōka
• 日本語文法史研究