PHP Kenkyūjo

• Rasuto de kimi wa "Masaka!" to iu
• Zukai supēsu atorasu
• "1985-nen" o dō yomu ka
• Chichi e haha e. hyakumankai no arigatō
• Ibento no hon
• Kenshō Yasukuni mondai to wa nani ka
• Kōgō Heika Michiko-sama
• Kokusaiteki na pawā baransu no henka ni tomonaru tekisei na gaikō shigen no haibun
• Matsushita Kōnosuke no ronten
• Matsushita Konosuke, 1894-1989
• Mirai nenpyō
• Nihonjin maruwakari jiten