Environmental Management & Business Strategy ; -The Case Studies of Japanese Companies in Southeast Asia. The Journal of The Faculty of Economics Seikei University. 2001. 31. 2. 143-186
Beppu Yuko, Sakai Mutsumi. <Article> Environmental Management & Business Strategy : Case Study : TOYOTA Motor Inc. The journal of the Faculty of Economics. 2000. 31. 2. 249-280