Oka, Masao

1927

• Saikenkoku Nihon no yakuwari
• En ga kijiku tsuka ni naru hi
• Kaigun Yokaren yomoyama monogatari
• Kinyu gurobaru-ka to ginko keiei
• Okayama no Uchida Hyakken (Okayama bunko)
• Tenkanki no ginko keiei