Preston, Andrew
Oxford University Press, 2017
eBooks
David Vlahov
Jossey-Bass, 2010
Buku Teks
Sheth, Jagdish N.
Ohio South-Western Pub, 1989
Buku Teks
edited by Jagdish N. Sheth and Abdolreza Eshghi
South-Western Publishing, 1989
Buku Teks
Lancers Publishing, 1983
Buku Teks