ISBN 4627847416 books & textbook
Gurūpūea : Web jidai no kyōchō sagyō shien shisutemu
Haruo Hayami; Shigenori Ioroi; Yōnosuke Furui; Akira Hattori
Tōkyō : Morikita Shuppan, 2007. /2007-10-01 Tankobon Softcover
isbn-10: 4627847416 / isbn-13: 9784627847415