Wilson, Billie Ann
Pearson Education, 2003
Multimedia
Shannon, Margaret T.
Prentice-Hall, 2001
Buku Referensi
Wilson, Billie Ann
Prentice-Hall, 2003
Buku Referensi
by Billie Ann Wilson ... [and others]
Prentice-Hall, 2007
Buku Teks SO
Kramer, Melinda G.
Prentice-Hall, 1995
Buku Referensi