ISBN 4627829418 books & textbook
Gakushū shisutemu no riron to jitsugen
Sumio Watanabe; Katsuyuki Hagiwara; Shōtarō Akaho; Yōichi Motomura; Kenji Fukumizu; Masato Oka
Tōkyō : Morikitashuppan, 2005. /2005-07-01 Tankobon Hardcover
isbn-10: 4627829418 / isbn-13: 9784627829411
