Odden, David
Cambridge Press, 2007
Buku Teks SO
Kennedy, Robert, 1974-
Cambridge University Press, 2017
Buku Teks SO
Kuki, Hiroshi
Linguistic Circle of Canberra, 1970
Buku Teks SO
Odden, David
Cambridge University Press, 2005
eBooks
Gussmann, Edmund
Cambridge University Press, 2002
Buku Teks SO