Coba jelasin Galeri dari Ludwig Ingwer Nommensen dong

Daftar misionaris Kristen di Tanah Batak

1877, The Gospel according to Saint John: Translated out of the Original Greek into Batta (Toba), the Language of the Batta in the Island of Sumatra. Elberfeld: Friderichs & Comp.

1877, Tobasch Spelboekje, Batavia: 's Landsdrukkerij.

1878, The New Testament of our Lord and Saviour Jesus Christ: Translated out of the original Greek into Batta (Toba), the language of the Batta in the island of Sumatra. Elberfeld: R. L. Friderichs & Comp,

1885, Tobasch Spelboekje, Elberfeld: R.L. Friderichs & Comp.

1886, Djamita sian Hata ni Debata na di Padan na Robi, Elberfeld: R.L. Friderichs & Comp.

1908, Jamita sian hata ni Debata na di padan na robi, Elberfeld: R.L. Friderichs & Comp.