Bass, Lawrence W.
Praeger , 1965
Buku Teks
Johnson, Richard A., author
McGraw-Hill, 1973
Buku Teks
McGarrah, Robert E., author
John Wiley & Sons, 1963
Buku Teks
Bensoussan, Alain, author
North-Holland Pub., 1974
Buku Teks
Dale, Ernest, author
Penguin Books, 1975
Buku Teks