Filtering by: Contributor Lee, Byung Suk Remove constraint Contributor: Lee, Byung Suk Creator Jeong, Byongug Remove constraint Creator: Jeong, Byongug Type Thesis Remove constraint Type: Thesis Resource type http://purl.org/coar/resource_type/c_db06 Remove constraint Resource type: http://purl.org/coar/resource_type/c_db06