Hicks, Lanis L.
Jones & Bartlett Learning, 2014
Buku Teks
Folland, Sherman
Prentice-Hall, 1997
Buku Teks
Folland, Sherman
Prentice-Hall, 2001
Buku Teks
Eastaugh, Steven R.
Auburn House, 1981
Buku Teks
Ruchlin, Hirsch S.
Charles C. Thomas, 1973
Buku Teks