↑JockJ.HughesJockJ., The languages of Kei, Tanimbar and Aru: Lexicostatistic classification, [w:] SoenjonoS.Dardjowidjojo (red.), Miscellaneous studies of Indonesian and other languages in Indonesia, Part 9, Jakarta: Badan Penyelenggara Seri Nusa, Universitas Atma Jaya, 1987 (NUSA: Linguistic studies in Indonesian and languages in Indonesia 27), s. 71–111, OCLC896429711 [dostęp 2022-07-23](ang.).