Sharpe, William F., author
Prentice-Hall, 1995
Buku Teks
Aharoni, Yair, author
Harvard University, 1966
Buku Teks
Hawkins, Christopher James, author
Macmillan, 1971
Buku Teks
Badger, Ralph Eastman, 1890-, author
Prentice-Hall, 1951
Buku Teks
Badger, Ralph Eastman, 1890-, author
Prentice-Hall, 1951
Buku Teks