Development of Cooperative Learning Object Based on SCORM. - Young-Sik Jeong; Seong-Hun Ahn (ICALT, 2005)

Quality Assurance of Distance Education in Korea. - Sook-Young Choi; Seong-Hun Ahn (Int. J. Adv. Comp. Techn., 2010)

Quality Assurance for Online Programs. - Sook-Young Choi; Seong-Hun Ahn (Int. J. Adv. Comp. Techn., 2010)