The Eastern Jebel languages. In Bender, M. Lionel (ed.), Topics in Nilo-Saharan Linguistics, 151-179. Hamburg: Helmut Buske.; Evans-Pritchard, Edward Evan. 1932. Ethnological observations in Dar Fung. Sudan notes and records 15. 1-61. ("[R]eproduces one or two not easily accessible vocabularies of the last century and adds others, in the Burun languages, Berta, Gule and Uduk" (Stevenson 1971:?).).