by Nancy McCormark and Catherine Cotter
Chando, 2013
eBooks
edited by Maria D.D. Collins, Patrick L. Carr
Taylor and Francis, 2008
Buku Teks
Yerbury, Hilary, author
University of Technology, 1992
Buku Referensi
Brown, Adrian, author
Facet Publishing, 2006
Buku Teks
Numerof, Rita E.
Aspen systems , 1983
Buku Teks