edited by Robert A. Becker
An Elgar research collection, 2013
Buku Teks
edited by Lorenzo Cappellari, Solomon W. Polachek, Konstantinos Tatsiramos
Emerald, 2016
eBooks
Doh C. Shin
Cambridge University Press , 1999
Buku Teks SO
Zhou, Yunbo
Springer, 2012
eBooks
Ore, Tracy E.
Mayfield Publishing, 2000
Buku Teks SO