| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Jijitsu nintei no kiso: Saibankan ni yoru jijitsu handan no kōzō | 978-4-641-03843-1 (4-641-03843-0) | |
| Yōken jijitsu no kiso: Saibankan ni yoru hōteki handan no kōzō | 978-4-641-13251-1 (4-641-13251-8) |
S. Ito · Saeko Ito · Seiko Ito · Seizo Ito · Shoji Ito · Shōko Ieda · Shuichi Iwata