Sutton, Raul, author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Wood, Jesse H., author
Evenston Harper, 1963
Buku Teks
Brady, James E., author
John Wiley & Sons, 1978
Buku Teks
Brady, James E., author
John Wiley & Sons, 1981
Buku Teks
by Robert W. Parry ... [and others]
Prentice-Hall, 1970
Buku Teks