McDonald, Robert L.
Addison-Wesley, 2006
Buku Teks
McDonald, Robert L.
Pearson Education, 2006
Multimedia
London: Tiger Books International, 1994,
Buku Referensi
Chance, Don M.
Thomson, 2008
Buku Teks
editor, Karl Blau, Graham S. King
Heyden, 1979
Buku Referensi