Hiromi Nema

• Ōzumō gyōji no dentō to henka
• Ōzumō gyōji no fusairo to shōbatsu
• Ōzumō gyōji no gunbaibō to dohyō
• Ōzumō gyōji no sekai
• Ōzumō no rekishi ni miru hiwa to sono kenshō
• Ōzumō tategyōji no gunbai to kūi
• Ōzumō tategyōji no meiseki to sōshibō
• Seisei on'in ron sekkinhō