Bill of Exchange
Bills of exchange is an instrument in writing containing an unconditional order signed by the maker directing a certain person to pay a certain sum of money only to or to the order of a certain person or to the bearer of the instrument.
A bill of exchange is a document requiring a debtor to pay an agreed amount by the date written on the bill. It is prepared by the creditor, send to the debtor. If the debtor agrees, he will sign and return back to the creditor.