Herman, A. L., author

Westview Press, 1991

 Buku Referensi

Mohd. Zariat Abdul Rani, author

[Direktorat Riset dan Pengabdian Masyarakat UI;Universiti Putra Malaysia. Faculty of Modern Languages and Communication;Universiti Putra Malaysia. Faculty of Modern Languages and Communication, Universiti Putra Malaysia. Faculty of Modern Languages and Communication], 2010

 Artikel Jurnal

Mohd. Zariat Abdul Rani, author

Universiti Putra Malaysia. Faculty of Modern Languages and Communication, 2010

 Artikel Jurnal

O`Malley, L.S.S. (Lewis Sydney Steward), 1874-1941, author

Macmillan, Cambridge, ENg. University Press, 1935

 Buku Teks

Eliot, Charles William, 1834-1926, author

Routledge & Kegan Paul, 1954

 Buku Teks