Title: Tangsin ŭi chigŏp i pyŏng ŭl mandŭnda : chigŏppyŏng sangsik /
Authors: Kuro Ŭiwŏn, Inchʻŏn Ŭiwŏn, Pʻyŏnghwa Ŭiwŏn Sangdamsil (Korea)
Publisher: Tol Pegae,
Year: 1991