^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian (編). Birhor. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History. 2016.
^Vidyarthi, L. P., The Birhor (The Little Nomadic Tribe of India), Wallace, Anthony F. C (編), Men and Cultures, University of Pennsylvania Press, 1960, ISBN 9781512819526, doi:10.9783/9781512819526-085