Jabarkan Rumpun bahasa Sabah: dari Rumpun bahasa Kalimantan Utara

Adelaar, Alexander K., "The Austronesian Languages of Asia and Madagascar: A Historical Perspective", The Austronesian Languages of Asia and Madagascar, pp. 1–42, Routledge Language Family Series, London, Routledge, 2005, ISBN 0-7007-1286-0

Blust, Robert, "Low Vowel Fronting in Northern Sarawak", Oceanic Linguistics, 39:2, pp. 285–319, 2000.

Blust, Robert, "Òma Lóngh Historical Phonology", Oceanic Linguistics, 46:1, pp. 1–53, 2007.