Marian Bubak, editor
[Springer-Verlag, ], 2012
eBooks
Yarborough, William J.
McGraw-Hill, 1998
Buku Teks SO
Lee, Stuart D.
Facet Publishing, 2004
Buku Teks SO
University of Chicago , 1963
Buku Teks SO
edited by Jennifer S. Cargill
Meckler , 1991
Buku Teks SO