Visit Limsombunchai, Christopher Gan and Minsoo Lee
American Journal of Applied Sciences 2 ( 8 ): 1198 - 1205 , 2005
Visit Limsombunchai, Christopher Gan and Minsoo Lee
American Journal of Applied Sciences 1 ( 3 ): 193 - 201 , 2004
Christopher Gan, Visit Limsombunchai, Mike Clemes and Amy Weng
Journal of Social Sciences 1 ( 4 ): 211 - 219 , 2005