Alas, Kluet, Singkil (Kade-Kade). Alas dialect may be more similar to Karo Batak [btx], 81% cognate (Soravia 2002), while Kluet and Singkil may be more closely related to Pakpak Dairi [btd].
Other Comments
Many reject the label Batak for its cultural connotations. Unclear whether this is a single language.
Many reject the label Batak for its cultural connotations. Unclear whether this is a single language.