Whipkey, Kenneth L.
John Wiley & Sons, 1972
Buku Teks
Miller, Kenneth S.
Henry Holt, 19960
Buku Teks
Varberg, Dale E., author
Pearson - Prentice Hall, 2007
Buku Teks
Bartle, Robert Gardner, 1927-, author
Scott, Foresman, 1968
Buku Teks
Ayres, Frank, 1901-1994, author
[publisher not identified], [date of publication not identified]
Buku Teks