Media channels and consumer purchasing decisions. - JongRoul Woo; Joongha Ahn; Jongsu Lee; Yoonmo Koo (Ind. Manag. Data Syst., 2015)

Lowering customer's switching cost using B2B services for telecommunication companies. - Hyunsong Lee; Hyunhong Choi; Yoonmo Koo (Telematics Informatics, 2018)