by 최용(Yong Choi), 신은주(Eun Joo Shin), 한영수(Young Soo Hahn), 성백석(Baik SeoK Seung)
Published in Biuletyn Uniejowski (2016)

by 신은주(Eun Joo Shin), 이영선(Young Sun Rhee)
Published in Asia Marketing Journal (Online) (2012)

by 이영선(Young Sun Rhee), 신은주(Eun Joo Shin)
Published in Asia Marketing Journal (Online) (2011)