Oakland, John
London; New York Routledge 1992,
Buku Teks
Oakland, John
Routledge , 1992
Buku Teks
edited by Peter Childs, Mike Storry
Routledge, 1999
Buku Referensi
Jack, Ian
Secker & Warburg , 1987
Buku Teks
Whitelock, Dorothy
Penguin Books, 1952
Buku Teks