Imre Szeman, Sarah Blacker, Justin Sully
NJ Wiley Blackwell, 2017
Buku Teks
Rosenberg, Vivian M., author
Buku Teks
Rosenberg, Vivian M., author
Random House, 1989
Buku Teks
Goatly, Andrew, author
Routledge , 2000
Buku Referensi
Christesen, C.B., author
Angus and Robertson, 1968
Buku Teks