The Journal of Korea Information Technology Convergence Society (한국정보기술융합학회논문지) 2093-6079(pISSN) / 2008.08.00 ~ http://www.riss.kr/search/detail/DetailView.do?p_mat_type=3a11008f85f7c51d&control_no=bc257a50543302a0ffe0bdc3ef48d419