Jensen, James N.
Pearson/Prentice Hall, 2006
Buku Teks
O`Hanlon, John F.
John Wiley & Sons, 1980
Buku Teks
Flin, David
Institute of South East Asia Studies, 2010
eBooks
McCleary, John
Publish or Perish, 1985
Buku Referensi
Borland International, 1987
Buku Referensi