Pauly T. de. Description ethnographique des peuples de la Russie (St. Petersburg, 1862), Peuples ouralo-altaïques. P. 71

(Sir) Risley H. H. The Tribes and Castes of Bengal, Ethnographic Glossary, II. (Calcutta, 1891). P. 75 sq. Compare E. T. Atkinson. The Himalayan Districts of the North-Western Provinces of India, II. (Allahabad, 1884). P. 832; Crooke W. Popular Religion and Folklore of Northern India (Westminster, 1896), II. 57.