Tan, Chwee Huat
Pearson Prentice Hall, 2004
Buku Teks
Ohtaki, Reiji
John Wiley & Sons, 2004
Buku Teks
Byars, Llyod L.
Richard D. Irwin, 1984
Buku Teks
Randall S.Schuler, Susan E.Jackson, editor
Blackwell Publisher, 2000
Buku Teks
Raymond A. Noe
McGraw-Hillm, 2006
Buku Teks