by 서용구(Suh, Yong-Gu), 임승희(Im, Seung-Hee)
Published in 대한경영학회지 (2005)

by 서용구(Suh Yong-Gu), 이은경(Eun-Kyung Lee)
Published in Journal of global academy of marketing science = Make'ting gwahag yeon'gu (30.09.2008)