Purves, William K.
The Mona GrOup LLC, 1998
Multimedia
Belk, Collen
Pearson/Benjamin Cummings, 2008
Buku Teks
Belk, Collen
Pearson Prentice Hall, 2007
Multimedia
by William K. Purves ... [et.al.]
W.H. Freeman, 1997
Buku Teks
Rahn, Joan E.
Macmillan, 1974
Buku Teks SO