By Mukai Rumiko, Tsukiji Nobumi, Kushida Machiko
By Lam, Martin, Shimizu, Kaoru
By Carol Akiyama, Nobuo Akiyama
By The Association for Japanese Language Teaching
By Yvonne Hillier, Jill Jameson (Director, Lifelong Learning, University of Greenwich)
By Heather Amery
By Peter Constantine
By Ajalt
By George Trombley, Yukari Takenaka
By Judith Wilson
By Seiichi Makino, Michio Tsutsui
By EuroTalk Ltd.
By Chambers, Kevin, Palmer, Wesley, Lau, Kam
By Breen, John
By Kodansha International, Hulbert, Paul C
By Yoshida, Masatoshi, Nakamura, Yoshikatsu
By Lange, Roland A.
By Trombley, Mr. George, Takenaka, Ms. Yukari
By Kamada, Osamu
By 3A Network
By Yoko Sakane, Japan Times
By AOTS
By collectif