NorthernSubgroup of 3 languagesAncestorsAustronesian 1256Malayo-Polynesian 1234Northwest Sumatra-Barrier Islands 12Batak 7NorthernBatak Alas-Kluet btz, a language of IndonesiaBatak Dairi btd, a language of IndonesiaBatak Karo btx, a language of Indonesia
