Hodder & Stoughton, 1958,
Buku Referensi
King, Peter, author
Hodder & Stoughton, 1986
Buku Referensi
King, Peter, author
Hodder & Stoughton, 1992
Buku Referensi
Doble, Marion, author
Martinus Nijhoff, 1960
Buku Referensi
Russel, James Anderson
H. J. Paris, 1939
Buku Klasik