Welaun was documented by Hull (2003)[4] and Edwards (2019). Edwards (2019) estimates a speaker population of 5,575.[2] A dictionary of Welaun has been written by da Silva (2012).[5]
^Hull, Geoffrey. 1998. "The basic lexical affinities of Timor's Austronesian languages: a preliminary investigation." Studies in Languages and Cultures of East Timor 1:97-202.
^Hull, Geoffrey. 2003. Lia-Bekais nia Fatin iha Dalen-Lubun Tim´or. Studies in Languages and Cultures of East Timor 5:55–78. (In Tetun Dili.)
^da Silva, Eng. Guilherme ‘Puru-Berliku’. 2012. Disionáriu Wekais-Tetun. Dili: Secretaria de Estado da Cultura.