Sellers, Gene R.
WB. Saunders, 1977
Buku Teks
Anderson, Theodore R.
Holt, Rinehart, 1968
Buku Teks
Wine, R. Lowell
Prentice Hall of India, 1966
Buku Teks
Wonnacott, Thomas H., 1935-
John Wiley & Sons, 1990
Buku Teks
Mann, Prem S
Jon Wiley & Sons, 2011
Buku Teks