Shackelford, James F.
Pearson-Prentice Hall, 2005
Buku Teks
Meier, Michael L.
Pearson Education, 2005
Multimedia
Meier, Michael L.
2005
Multimedia
Shackelford, James F.
Prentice Hall International, 1996
Buku Teks
Van Vlack, Lawrence H.
Addison-Wesley, 1970
Buku Teks