| Type ▼ | Name | Year ▼ | Publisher ▼ |
|---|---|---|---|
| Sinclair ZX-81 cass. |  Advanced Mathematics | 1982 | Smith, W.H. |
| Sinclair ZX Spectrum cass. | Advanced Mathematics | 1983 | Smith, W.H. |
| Sinclair ZX-81 cass. | Club Records | 1982 | Smith, W.H. |
| Sinclair ZX-81 cass. | Collectors Recording System | 198? | Smith, W.H. |
| Sinclair ZX-81 cass. | General Statistics | 1982 | Smith, W.H. |
| Sinclair ZX Spectrum cass. | General Statistics | 1983 | Smith, W.H. |
| Sinclair ZX-81 cass. | Vector Mathematics | 1982 | Smith, W.H. |
| Sinclair ZX Spectrum cass. | Vector Mathematics | 1983 | Smith, W.H. |