Lluch, Constantino, author
World Bank , 1985
Buku Teks
Washington The World Bank 1993,
Buku Teks
Meerman, Jacob P., author
The World Bank, 1997
Buku Referensi
edited by Vinod Thomas ... [et al.].
Oxford University Press, 1991
Buku Teks
Jayarajah, Carl, author
World Bank, 1996
Buku Teks