James A. Coleman; John Klapper
Routledge, 2005
Buku Teks
Norbert Pachler edited by
Routledge, , 1999
Buku Teks
Stevick, Earl W.
Cambridge University Press, 1982
Buku Teks
edited by M.G. Hesse
North-Holland, 1975
Buku Teks
Faculty of Languages and Linguistics University of Malaya, 2009
Majalah, Jurnal, Buletin