Marcel Das, Peter Ester, Lars Kaczmirek, editor
Routledge, 2011
Buku Teks
series editors, Ataur Belal, Stuart Cooper
Emerald, 2017
eBooks
Russell, Louise B.
The Brookings Institute, 1979
Buku Teks
NASW Press, 1990
Buku Teks
edited in chief Cecilia Fenoglio-Preiser
Mosby, 1990
Buku Teks