Columbia subject headings:
Industrial property--Korea (South)--Statistics--Periodicals.
Industrial property--Statistics--Periodicals.
Intellectual property--Korea (South)--Statistics--Periodicals.
Intellectual property--Statistics--Periodicals.
Harvard subject headings:
Copyright, International--Statistics--Periodicals.
Intellectual property--Korea (South)--Statistics--Periodicals.
Patents--Korea (South)--Statistics--Periodicals.
Princeton subject headings: