Creating orthographies for endangered languages
edited by Mari C. Jones, Damien Mooney
Cambridge University Press, 2017
 Buku Teks SO
Schapper, Antoinette
Neuter gender in the languages of aru
Faculty of Humanities University of Indonesia, 2015
 Artikel Jurnal
Sellato, Bernard
The languages and peoples of the müller mountains a contribution to the study of the origins of borneo's nomads and their languages
Faculty of Humanities University of Indonesia, 2015
 Artikel Jurnal
The Slavonic languages
edited by Bernard Comrie and Greville G. Corbett
Routledge, 1993
 Buku Teks
Katzner, Kenneth
The languages of the world
Routledge, 1995
 Buku Referensi