Reston, James, author
Doubleday, 2005
Buku Teks
Goodrich, L. Carrington (Luther Carrington), 1894-, author
Waverly Press, 1935
Buku Teks
Forsyth, Frederick, 1938-, author
Serambi Ilmu Semesta, 2013
Buku Teks
Haag, WG
Lexiton University of Kentucky 1948
Buku Teks
Kecskemeti, Paul, author
Stanford University Press, 1958
Buku Teks