Anceaux, Johannes Cornelis, 1920-
The linguistic situation in the islands of Yapen, Kurudu, Nau and Miosnum, New Guinea
Martinus Nijhoff, 1961
 Buku Teks SO
Anceaux, Johannes Cornelis, 1920-
The linguistic situation in the islands of Yapen, Kurudu, Nau and Miosnum, New Guinea
Martinus Nijhoff, 1961
 Buku Teks SO
Ivic, Milka
Trends in linguistics / Milka Ivic
Mounton, 1970
 Buku Teks SO
New Horizons in Linguistics
edited by John Lyons
Penguin Books, 1973
 Buku Teks SO
Makkai, Adam
Ecolinguistics : towards a new paradigm for the science of language? / Adam Makkai.
Pinter Publishers, 1993
 Buku Teks SO