Need harvard referencing atleast 3. The case is attached below.

a. The audit sample selection that Jack has to provide in his audit report should include transactions that are done by Entrance Industries on credit, this is because oftentimes it is noticed that the credit sales that the company indulge in are the first step towards fraud or a misdirection.
The vouching procedure which should be followed by Jack should include both the sources which are internal and external vouchers because vouchers can be made internally and that can be a fraud but the external vouchers are...