VERGOUWEN, J. (1964). The Social Organisation And Customary Law Of The Toba-batak Of Northern Sumatra J.c. Vergouwen. The Hague.
Lua i Stíl Chicago (17ú heag.)VERGOUWEN, J.C. The Social Organisation And Customary Law Of The Toba-batak Of Northern Sumatra J.c. Vergouwen. The Hague, 1964.
Lua MLA (8ú heag.)VERGOUWEN, J.C. The Social Organisation And Customary Law Of The Toba-batak Of Northern Sumatra J.c. Vergouwen. The Hague, 1964.
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