Brown, Robert (1981). "Semantic aspects of some Waris predications". Iti Karl J. Franklin (ed.). Syntax and semantics in Papua New Guinea languages. Ukarumpa: Summer Institute of Linguistics. pp. 93–123.
Brown, Robert (1988). "Waris case system and verb classification". Language and Linguistics in Melanesia. 19: 37–80.
Brown, Robert; Honoratus Wai (1986). Diksenari: Walsana moa Pisinna moa Englisna moa (A short dictionary of the Walsa [Waris] language, Tok Pisin and English). Ukarumpa: Summer Institute of Linguistics.