edited by Hillol Kargupta
CRC Press, Taylor & Francis Group, 2009
Buku Teks
International Bank for Reconstruction and Development.
The World Bank, 2006
Buku Teks
Jordan, James A.
John Wiley & Sons, 2000
Buku Teks
López, Ana Belen Cristobal, editor
Springer, 2012
eBooks
edited by Ion Mandoiu, Alexander Zelikovsky
Wiley, 2016
Buku Teks