Lawson, Henry, 1867-1922, author
Angus Robertson, 1984
Buku Teks
Rolls, Eric
Nelson, 1981
Buku Teks
Cannon, Michael, author
Viking O`Neil, 1983
Buku Teks
Isaacson, Walter, author
Collins Design, 2008
Buku Referensi
Haslund, Henning
Kegan Paul, 1934
Buku Teks