Terborgh, George
McGraw-Hill Book Compeny, Inc., 1949
Buku Teks
Gardner, Burleigh B., author
Irwin , 1955
Buku Teks
Anthony, Robert N. (Robert Newton), 1916-2006, author
Irwin, 1995
Buku Teks
Anthony, Robert N. (Robert Newton), 1916-2006, author
Richard D. Irwin, 1991
Buku Teks
Maciariello, Joseph A.
Prentice-Hall, 1984
Buku Teks