Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian (编). Manat. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History. 2016.
ucsb.edu
alexandria.ucsb.edu
Daniels, Don Roger. A Reconstruction of Proto-Sogeram. Alexandria Digital Research Library. June 2015: 82–83 [2020-09-21]. （原始内容存档于2019-01-01）.
web.archive.org
Daniels, Don Roger. A Reconstruction of Proto-Sogeram. Alexandria Digital Research Library. June 2015: 82–83 [2020-09-21]. （原始内容存档于2019-01-01）.
