Barrie, Donald S., author
Erlangga, 1984
Buku Teks
Potts, Keith, author
Taylor &Fransic, 2008
Buku Teks
Clough, Richard Hudson, author
John Wiley & Sons, Inc, 1994
Buku Teks
Levy, Sidney M., author
McGraw-Hill , 2002
Buku Teks
Levy, Sydney M., author
McGraw-Hill , [Date of publication not identified]
Buku Teks