TARUMA Kazuyuki, Ph.D. Professor Faculty of Business Administration Osaka University of Commerce Mikuriya-sakae-machi 4-1-10, Higashi-osaka, Osaka 577-0036, Japan phone : +81-6-6785-6112 e-mail:taruma@daishodai.ac.jp
TARUMA Kazuyuki, Ph.D. Professor Faculty of Business Administration Osaka University of Commerce Mikuriya-sakae-machi 4-1-10, Higashi-osaka, Osaka 577-0036, Japan phone : +81-6-6785-6112 e-mail:taruma@daishodai.ac.jp