| Type | Title | 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. |