Kakkye kaehŏn ŭigyŏn yoyak
By: [pʻyŏnjip Pŏpchechʻŏ].
Series: Hŏnpŏp simŭi charyo
Publisher: Pŏpchechʻŏ
Published: 1980
Place of publication: [Sŏul]
Language: kor
Number of pages: 25