Ultra-Tech Services
Publisher Information
| Name | Ultra-Tech Services |
| Address | 30A Billing Road, Northampton |
| Notes |
List of MIA ZX81 Tapes (3)
| # | Description | #Ref | First mention | Link |
|---|---|---|---|---|
| 1 | Complex Numbers | 1 | Sinclair User 5 | [full page] |
| 2 | Non-Linear Equations | 1 | Sinclair User 5 | [full page] |
| 3 | Numerical Analysis | 1 | Sinclair User 5 | [full page] |
