- E-bookThe 1996 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1990 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1994 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1992 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1998 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1997 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1991 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1995 CIA World FactbookUnited States. Central Intelligence Agency
- E-bookThe 1993 CIA World FactbookUnited States. Central Intelligence Agency