Osamu

Ladybirds (Observing nature)

By Yajima, Minoru, Tsurata, Osamu

An Introduction to Modern Japanese

By Mizutani, Osamu, Mizutani, Nobuko

The Japanese Mind: Understanding Contemporary Japanese Culture

By Davies, Roger J., Ikeno, Osamu

Authentic Japanese: Progressing from Intermediate to Advanced

By Kamada, Osamu