Freeman, Harold Adolph, author
Addison-Wesley, 1963
Buku Teks
Carlborg, Frank W.
Scoott, Foresman, 1968
Buku Teks
Sigel, Andrew F., author
John Wiley & Sons, 1996
Buku Teks
Rohatgi, V.K., author
John Wiley & Sons, 1976
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1992
Buku Teks