Koji Haijima books & textbook
Final Fantasy IX Original Soundtrack
Emiko Shiratori Masato Matsuda Masakazu Ishibashi Jun Kajihara Masayuki Chiyo Atsuo Okamoto Michio Nagaoka Masatsugu Shinozaki Group Nobuo Uematsu Koji Haijima
Square Enix /2004-05-19 Audio CD
メリサンド姫: むてきの算数! (おはなしメリーゴーラウンド)
Edith Nesbit; Kari Haijima; Koji Takakuwa
Komineshoten. /2014-02-21 Tankobon Hardcover
isbn-10: 4338222115 / isbn-13: 9784338222112