Carr, Joseph J., author
Newnes, 2002
Buku Referensi
Carr, Joseph J., author
Newnes, 2002
Buku Teks
Maurice J. Webb, editor-in-chief
McGraw-Hill, 1983
Buku Referensi
Orr, William I., author
Howard W. Sams , 1987
Buku Referensi
Wilby, Pete, author
Routledge, 1994
Buku Referensi