Editor: Kodansha

How To Score Up Steadily In The Toeic Test To Read The Wall Street Journal (2012) Isbn: 4062178494 [Japanese Import]

600 Points Topped Toeic Test The "Lead" Word Drill (2012) Isbn: 4062175304 [Japanese Import]

The Person After Retirement Without Human Success In The "Senior Entrepreneurship", Connect With Society, To Utilize The Experience (Kodansha Plus Alpha Books) (2013) Isbn: 4062728001 [Japanese Import