Baskin, Otis W.
Brown & Benchmark, 1997
Buku Teks
Seitel, Fraser P.
Prentice-Hall, 1998
Buku Teks
Salemba Humanika, 2010
Buku Teks
Rashelle S. Karp, editor
[American Library association, American Library association], 2002
eBooks
by Dan Lattimore [and others]
McGrow-Hill, 2012
Buku Teks