Title: Chosŏn tongnip ŭi tangwisŏng (oe) : Yŏ Un-hyŏng pʻyŏn /
Authors: Yŏ, Un-hyŏng; Kang, Chun-sik.
Publisher: Pŏmu,
Year: 2008
Subjects: Yŏ, Un-hyŏng; Korea Politics and government; Korea History