Eliot, Charles William, 1834-1926
Routledge & Kegan Paul, 1954
Buku Teks
Humphreys, Christmas
Penguin Books, 1985
Buku Referensi
Kingsland, Venika Mehra
Global Books , 1997
Buku Teks
Ratnakar, Pramesh
Tiger Books International, 1996
Buku Teks
Bouquet, A.C.
Hutchinson's University Library, [date of publication not identified]
Buku Teks