Title: Hanŭl kwa param kwa pyŏl kwa si : wŏnbon taejo Yun Tong-ju chŏnjip.
Authors: Yun, Tong-ju, 1917-1945; Yŏnse Taehakkyo.
Publisher: Yŏnse Taehakkyo Chʻulpʻanbu,
Year: 2004