Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "TiwaArchived 2016-03-03 at the वेबैक मशीन". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "TiwaArchived 2016-03-03 at the वेबैक मशीन". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.