^Mead, David. (2003). "Evidence for a Celebic supergroup." In Lynch, John (ed.). Issues in Austronesian historical phonology, pp. 115-141. Canberra: Australian National University. (Pacific Linguistics 550)
^Donohue, Mark. (2004). "The pretenders to the Muna-Buton group." In Bowden, J. and Himmelmann, N. (eds.). Papers in Austronesian subgrouping and dialectology, pp. 21-36. Canberra: Australian National University. (Pacific Linguistics 563)
^Mead, David. (2003). "Evidence for a Celebic supergroup." In Lynch, John (ed.). Issues in Austronesian historical phonology, pp. 115-141. Canberra: Australian National University. (Pacific Linguistics 550)
^Laidig, Wyn D. and Maingak, Sahabu Dg. 1999. Barang-barang phonology: a preliminary description. In Wyn D. Laidig (ed.), Studies in Sulawesi linguistics, part VI, 46-83. Jakarta, Indonesia: Universitas Katolik Indonesia Atma Jaya.