Haeussler, Ernest F., author
Pearson - Prentice Hall, 2008
Buku Teks
Samuel, Myra L., author
Prentice Hall Inc., 1999
Buku Teks
Guttman, Irwin, author
John Wiley & Sons, 1982
Buku Teks
Miller, Sidney L., author
Reston Publishing, 1981
Buku Teks
Yamane, Taro, author
New York University, 1967
Buku Teks