By Mukai Rumiko, Tsukiji Nobumi, Kushida Machiko
By Lam, Martin, Shimizu, Kaoru
By Carol Akiyama, Nobuo Akiyama
By Banno et al, Japan Times
By 3A Network
By Kamada, Osamu
By Yoko Sakane, Japan Times
By The Association for Japanese Language Teaching
By AOTS
By Lange, Roland A.
By Martin, Samuel E.
By Len Walsh, Walsh, Len
By collectif
By Lexus, LTD
By Yoshida, Masatoshi, Nakamura, Yoshikatsu
By Kodansha International, Hulbert, Paul C
By Breen, John
By Chambers, Kevin, Palmer, Wesley, Lau, Kam
By EuroTalk Ltd.
By Seiichi Makino, Michio Tsutsui
By Judith Wilson
By George Trombley, Yukari Takenaka