Title: Pangsong simnihak yŏnʾgu sŏsŏl /
Authors: Kim, Kyu.; Chʻoe, Chʻang-sŏp.; Chŏn, Hwan-sŏng.
Publisher: Sŏgang Taehakkyo Chʻulpʻanbu,
Year: 1984
Subjects: Broadcasting Psychological aspects.