origami drill head is improved (brain healthy! Active Brain) ISBN: 4052020758 (2004) [Japanese Import]

by: RyuÌ"ta Kawashima · Kazuo Kobayashi Tankobon Hardcover details (United States). ISBN: 978-4-05-202075-9 ISBN-10: 4-05-202075-8 ToÌ"kyoÌ" : GakushuÌ" KenkyuÌ"sha, 2004. · 2004