Palmer, Monte, author
Thomson Wadsworth, 2007
Buku Teks
Lewis, Bernard, author
Weidenfeld and Nicolson, 1998
Buku Teks
Yayasan Paramadina, 1994
Buku Teks
Sloan, A
Hutchinson , 1924
Buku Teks
Halliday, Fred, author
Cambridge University Press, 2005
Buku Teks