Carle, Rainer
Opera Batak : das wandertheater der Toba-Batak in Nord-Sumatra : schauspiele zur wahrung kultureller undentitat in nationalen Indonesischen kontex
Dietrich Reimer, 1990
 Buku Teks
Tuuk, Herman Neubronner van der, 1824-1894
A grammar of Toba Batak
Martinus Nijhoff, 1971
 Buku Teks SO
Warneck, Joh. [Johannes], 1867-1944
Toba-Batak-Deutsches worterbuch
Martinus Nijhoff, 1977
 Buku Referensi
Simanjuntak, Solagratia Moza Tessalonika
Pembatalan Akta Pembagian Harta Waris yang Didasarkan pada Hukum Adat Batak Toba (Studi Putusan Mahkamah Agung Nomor 909 PK/Pdt/2019) = Cancellation of the Deed of Distribution of Inheritance Property Based on Toba Batak Customary Law (Study of Supreme Court Decision Number 909 PK/Pdt/2019)
Fakultas Hukum Universitas Indonesia, 2024
 UI - Tesis Membership
Warneck, Joh. [Johannes], 1867-1944
Toba-Batak-Deutsches Worterbuch / Joh Warneck
Martinus Nijhoff, 1977
 Buku Teks SO