收付凭据document

收据receipt

• 出纳单据

  disburse and receive receipts

• 报销单据

  reimburse a receipt

• 领款单据

  receipt for funds received

• 付款单据

  receipt for funds disbursed

• 有效单据

  valid documentation

• 发货单据

  shipping documents

• 订货单据

  purchase order

• 必须有单据证明。

  It is necessary to have documentary proof.