Schapper, Antoinette
Neuter gender in the languages of aru
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
Languages & Literatures
Peter Lang International Academic Publishin Group, 2010
 Majalah, Jurnal, Buletin
The World's major languages
edited by Bernard Comrie
Routledge, 1991
 Buku Referensi