Jones, Howard, author
Oxford Unioversity Press, 2003
Buku Teks
edited by Hillol Kargupta
CRC Press, Taylor & Francis Group, 2009
Buku Teks
International Bank for Reconstruction and Development.
The World Bank, 2006
Buku Teks
Laszlo Guczi; Andras Erdohelyi, editors
[Springer, ], 2012
eBooks
Tessa Hebb, editor
[Springer, Springer], 2012
eBooks