edited by Maria D.D. Collins, Patrick L. Carr
Taylor and Francis, 2008
Buku Teks
Yerbury, Hilary
University of Technology, 1992
Buku Referensi
Brown, Adrian
Facet Publishing, 2006
Buku Teks
Numerof, Rita E.
Aspen systems , 1983
Buku Teks
Dority, G. Kim
Libraries Unlimited, 2006
Buku Teks