Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Friberg, Timothy; Laskowske, Thomas V. (1989). "South Sulawesi languages" (PDF). In J.N. Sneddon (ed.). Studies in Sulawesi linguistics part 1. NUSA 17. Jakarta: Badan Penyelenggara Seri Nusa. pp. 1–17.
.jpg){kind=small}