Y. Yamamoto · Yukitaka Yamamoto
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Jiryoku To Jūryoku No Hakken 003 | 978-4-622-08033-6 (4-622-08033-8) | 2003 |
| Jūryoku to rikigakuteki sekai: Koten to shite no koten rikigaku | 978-4-7687-0108-9 (4-7687-0108-6) | 1981 |