Rotch, William, author
Prentice-Hall, c1995
Buku Teks
Rudwick, Bernard H., author
John Wiley & Sons, 1979
Buku Teks
Bedworth, David D., author
John Wiley & Sons, 1987
Buku Teks
Macedo, Manuel C., author
John Wiley & Sons, 1983
Buku Teks
Merchant, Kenneth A., author
Pearson education, 2012
Buku Teks