1997. ISBN 0-631-20035-5. Croft, William. Syntactic Categories and Grammatical Relations: The Cognitive Organization of Information. Chicago: University
Systems and Precategoriality in Philippine Languages". Workshop: Voice and Grammatical Functions in Austronesian. University of Sydney. Haspelmath, Martin.
Swadesh, Morris. Nootka Texts: Tales and ethnological narratives, with grammatical notes and lexical materials. Philadelphia: Linguistic Society of America
gramatická stavba [The speech of the Slovaks in Yugoslavia: phonological and grammatical structure]. Bratislava: Vydavateľstvo Slovenskej akadémie vied. Štolc