Stead, Christina
David Campbell Publisher, 1995
Buku Teks SO
Wetherell, W.D.
University of Pittsburgh Press , 1985
Buku Teks SO
Lawrence, David Herbert, 1885-1930
Everyman's Library, 1991
Buku Teks SO
Europa Publication Limited, 1992
Buku Referensi
edited by Jane Eldridge Miller
Routledge, 2001
Buku Referensi