Carman, James M.
Homewood, IiIll. Irwin
Buku Teks
Davis, Kenneth R.
John Wiley & Sons, 1981
Buku Teks
Constantin, James A.
Appleton-Century-Crofts, 1966
Buku Teks
Lorie, James H., author
NMcGraw-Hill , 1951
Buku Teks
Fitzroy, Peter T., author
McGraw-Hill, 1976
Buku Teks