Redhead, Keith
Woodhead-Faulkner , 1990
Buku Teks
Teweles, Richard J.
McGraw-Hill Book , 1987
Buku Teks
Hull, John C., author
Prentice-Hall, 1995
Buku Teks
Hull, John C., author
Prentice-Hall, 1997
Buku Teks
Hull, John C., author
Pearson Education, 2003
Buku Teks