About Kyoungrok Ko Kyoungrok Ko is an associate professor in the Department of East Asian Studies at the University of Toronto. Books by Kyoungrok Ko New Generation Korean Workbook Beginner Level, Second Edition by (author) Mihyon Jeon, Kyoungrok Ko, Daehee Kim, Yujeong Choi & Ahrong Lee New Generation Korean Intermediate Level by (author) Mihyon Jeon, Kyoungrok Ko, Daehee Kim, Yujeong Choi & Ahrong Lee