Petrakis, Panagiotis, author
Springer-Verlag, 2014
Buku Teks
Keiser, Norman F., author
John Wiley & Sons, 1964
Buku Teks
[publisher not identified], 2000
Buku Teks
Oxford University Press , 1993
Buku Teks
World Bank
Oxford University Press for the World Bank, 1993
Buku Teks