Columbia subject headings:
Karo-Batak (Indonesian people)--Social life and customs.
Land tenure (Adat law)
Land tenure--Law and legislation--Indonesia--Sumatera Utara.
Land tenure--Law and legislation--Indonesia--Sumatra.
Harvard subject headings:
Land tenure (Adat law)
Land tenure--Law and legislation--Indonesia--Sumatera Utara.
Princeton subject headings: