Martini, Frederic H., author
Prentice-Hall, 1995
Buku Teks
Chaffee, Ellen E., author
Lippincott , 1969
Buku Teks
Prentice-Hall, 2001
Buku Teks
Waugh, Anne, author
Churchill Livingstone , 2006
Buku Teks
Shier, David, author
McGraw-Hill, 2004
Buku Teks