ISBN 4817193050 books & textbook
Excel sorubā tahenryō kaiseki. inga kankei bunseki yosoku shuhōhen
Atsuho Nakayama; Shin'ya Nagasawa
Tōkyō : Nikka Giren Shuppansha, 2009. /2009-04-01 Tankobon Hardcover
isbn-10: 4817193050 / isbn-13: 9784817193056
