21-segi chŏngbohwa wa kuktʻo
Publisher: Naemubu
Published: 1980
Place of publication: [Seoul]
Language: kor
Number of pages: 411
Subjects: Telecommunication policy; Telecommunication systems; Information society
Other titles: Isibil segi chŏngbohwa wa kuktʻo
Notes: Includes bibliographical references (p. 381-395).