Power of the strongest language (4th grade or more) (work of Takashi Saito challenge level motivation) (2005) ISBN: 4010107596 [Japanese Import]

motivation

Tankobon Hardcover

ISBN: 978-4-01-010759-1

ISBN-10: 4-01-010759-6

Obunsha
See also:
2005単行本最強の国語力 (小学6年以上) (難関レベル斎藤孝やる気のワーク)