Takeshi Sakogashira books & textbook
Jibun sutairu de tsuyoku naru sofuto hausu eigyo no kyokasho : Wakariyasuku yasashiku yaku ni tatsu.
Takeshi Sakogashira; Nanshu Kaneshiro
Nikkankogyoshinbunsha. /2015-01-01 Tankobon Hardcover
isbn-10: 4526073555 / isbn-13: 9784526073557
