Columbia subject headings:
Harvard subject headings:
Computer industry--Korea (South)--Periodicals.
Information technology--Korea (South)--Periodicals.
Postal service--Korea (South)--Periodicals.
Telecommunication--Korea (South)--Periodicals.
Princeton subject headings:
Information networks--Korea (South)--Periodicals.
Periodicals.
Telecommunication--Korea (South)--Periodicals.