edited ny Jeffrey T. Huber
The Haworth Press, 1992
Buku Referensi
Prentice-Hall, 1998
Buku Teks
Kane, Laura Townsend, author
American Library association, 2003
eBooks
Lawal, Ibironke O., author
Chandos Publishing, 2009
Buku Teks
Patrick M. Malone, Karen L. Kier, John E. Stanovic
McGraw-Hill, Medical Publishing Division, 2006
Buku Teks