Silverthorn, Dee Unglaub, author
Pearson, 2016
Buku Teks
Gunstream, Stanley E.
McGraw-Hill , 2013
Buku Teks
Gunstream, Stanley E., author
McGraw-Hill, 2000
Buku Teks
Shier, David, author
McGraw-Hill, 2004
Buku Teks
Patton, Kevin T.
Elsevier, 2010
Buku Referensi