Columbia subject headings:
China--Relations--Koguryŏ (Kingdom)--Periodicals.
Koguryŏ (Kingdom)--History--Periodicals.
Koguryŏ (Kingdom)--Relations--China--Periodicals.
Harvard subject headings:
China--Relations--Koguryŏ (Kingdom)--Periodicals.
Koguryŏ (Kingdom)--History--Periodicals.
Koguryŏ (Kingdom)--Relations--China--Periodicals.
Princeton subject headings:
China--Relations--Koguryŏ (Kingdom)--Periodicals.
Koguryŏ (Kingdom)--History--Periodicals.
Koguryŏ (Kingdom)--Relations--China--Periodicals.
Periodicals.