Jōbun kara manabu rōdōhōMichio Tsuchida, Ryūichi Yamakawa, Yōichi Shimada, Fumiko Obata · First published 2011Open the Tome
Kēsubukku rōdōhōKazuo Sugeno, Michio Tsuchida, Ryūichi Yamakawa, Shin'ya Ōuchi, Shinobu Nogawa, Takuyuki Kawata · First published 2009Open the Tome
