Oxford University Press , 1982
Buku Teks
by Timothy King [and others]
The John Hopkins University Press , 1974
Buku Teks
Takamasa, Akiyama, author
FASID , 2003
Buku Teks
World, Bank, author
The International Bank for Reconstruction and Development, 1995,
Buku Referensi
editor, Lawrence H. Summers and Shekhar Shah
World Bank, 1993
Buku Teks