Padron:Glottolog
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, mga pat. (2017). Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.{{cite book}}: CS1 maint: date auto-translated (link)
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, mga pat. (2017). Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.{{cite book}}: CS1 maint: date auto-translated (link)
