editor, Rudolf Schlesinger
Routledge and Kegan Paul, 1951
Buku Teks
Schneider, Louis, author
McGraw-Hill, 1975
Buku Teks
Siegel, Paul N., author
University of Notre Dame Press, 1968
Buku Teks
Boucher, Bruce, author
Abbeville Press, 1998
Buku Teks
Shafie, Tun Muhammad Ghazali, author
National Archives of Malaysia, 2010
Buku Teks