Ehrenberg, Ronald G., author
Pearsons Addison-Wesley , 2009
Buku Teks
Meyers, Frederick H., author
Richard D. Irwin, 1951
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1978
Buku Teks
Spencer, Milton H., author
Worth, 1971
Buku Teks
Marshall, F. Ray
Ill. Richard D. Irwin , 1980
Buku Teks