Hirsa, Alih, editor
Academic Press, 2014
eBooks
McDonald, Robert L., author
Addison-Wesley, 2006
Buku Teks
McDonald, Robert L., author
Pearson Education, 2006
Multimedia
Inglis-Taylor, Andrew, author
Macmillan, 1995
Buku Referensi
editor, Karl Blau, Graham S. King
Heyden, 1979
Buku Referensi