Mader, Chris, author
Science Research Associates , 1974
Buku Teks
Davis, William S., author
Addison-Wesley, 1981
Buku Teks
Long, Larry E., author
Prentice-Hall, 1994
Buku Teks
McGraw-Hill , 1970
Buku Teks
Davis, Gordon B., author
McGraw-Hill, 1978
Buku Teks