^Bowern, Claire (2011). Sivisa Titan: Sketch Grammar, Texts, Vocabulary Based on Material Collected by P. Josef Meier and Po Minis. University of Hawai'i Press.
Further reading
Bowern, Claire (2011). Sivisa Titan: Sketch grammar, texts, vocabulary based on material collected by P. Josef Meier and Po Minis. Oceanic Linguistics Special Publication No. 38. Honolulu: University of Hawai‘i Press.
Ladefoged, Peter (2005). Vowels and Consonants (2nd ed.) Blackwell.