Ryōsei Fukuda

• Kūkai yōgo jiten
• Sanmayakai jo himitsu Sanmaya Bukkaigi
• Bōyaku Kōbō Daishi Kūkai Kongōchōgyō kaidai
• Gendai goyaku "Dainichikyō jūshinbon sho" o yomu, Mikkyō to wa nani ka
• Kōbō Daishi ga deatta hitobito
• Kōbō Daishi seiku shūsei
• Kokuyaku shōgyō taikei, Tōmitsubu sōmokuji sōsakuin
• Kūkai shisō no tankyū
• Rishukyō no kenkyū
• Shaku Makaenron zen
• Shingonshū shōjiten
• Shōkai Kūkai to Shingonshū