What are the different types of vouchers in our system?

Suggestions:
The System has many types of vouchers used in accounting. These are used for recording the transactions as a source document. Following are some of the types of these vouchers:

Payment: These types of vouchers are a recording of payment by cheque or cash for expense vouchers, tax vouchers, distribution expense, payroll and payments.

Receipt: These vouchers help in the recording of the receipts. If the payment is received from a customer, then a invoice is passed to the customer and a voucher will be prepared as a record of the transaction

Purchase: This voucher is made as a recording of the Purchase. This helps in determining whether the entity has actually carried out the Purchase. This is for contract, Purchase, Purchase receipts(GRN) and returns.

Sales: These vouchers are a recording of the sale of Inventory to the customer for Sales despatch and Sales returns.

Advance: These vouchers are designed for passing the advance receipts and payments

Journal: These are the vouchers when the account is neither a cash or cheque

Adjustments voucher: Changes in the business stock or any other changes are accounted by adjustment vouchers

PDC Received and PDC Given vouchers: This voucher is made as a recording the post dated cheques done for receivables and payables.