↑ Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin biên tập (2013). “Nicobaric”. Glottolog. Leipzig: Max Planck Institute for Evolutionary Anthropology.
↑ Blench, Roger, and Paul Sidwell. 2011. "Is Shom Pen a Distinct Branch?" In Sophana Srichampa and Paul Sidwell, eds. Austroasiatic Studies: Papers from ICAAL 4. Canberra: Pacific Linguistics.
1 2 Sidwell, Paul. 2017. "Proto-Nicobarese Phonology, Morphology, Syntax: work in progress". International Conference on Austroasiatic Linguistics 7, Kiel, Sept 29-Oct 1, 2017.
↑ Reid, Lawrence A. 1994. Morphological evidence for Austric. Oceanic Linguistics 33(2):323-344.
