Columbia subject headings:
Foreign trade regulation--Papua New Guinea--Periodicals.
Papua New Guinea--Commerce--Periodicals.
Papua New Guinea--Commercial policy--Periodicals.
Harvard subject headings:
Foreign trade regulation--Papua New Guinea--Periodicals.
Papua New Guinea--Commerce--Periodicals.
Papua New Guinea--Commercial policy--Periodicals.
Princeton subject headings:
Foreign trade regulation--Papua New Guinea--Periodicals.
Papua New Guinea--Commerce--Periodicals.
Papua New Guinea--Commercial policy--Periodicals.
Periodicals.