| Value | Category |
|---|---|
| -9 | Missing |
| -8 | Don't know |
| -7 | Notappl |
| 1 | Ledger book of all sales |
| 2 | Ledger book of all unpaid sales |
| 3 | Disorganised written notes |
| 4 | Customer provides written agreement and bussiness retains copy |
| 5 | Memory |
| 6 | Other(specify) |
| 7 | THEY PAY UPON DELIVERY NO CREDITS |
| Sysmiss |