edited by D.W.A. Sharp
Penguin Books, 1983
Buku Referensi
Maclean, James H., author
Penguin Books, 1993
Buku Referensi
Whitten, D.G.A., 1921-, author
Penguin Books, 1972
Buku Referensi
Whitten, D.G.A., 1921-, author
Victoria Penguin Books 1972,
Buku Referensi
Saussy, George Stone, author
Penguin Books, 1986
Buku Referensi