Knjiga s primeri aplikacij za ZX81, ki jo je leta 1981 izdala založba Macmillan Press.
The Sinclair ZX81 programming for the real applications
https://archive.org/details/the-sinclair-zx-81-programming-for-real-applications-randle-hurleyacme
Knjiga s primeri aplikacij za ZX81, ki jo je leta 1981 izdala založba Macmillan Press.
The Sinclair ZX81 programming for the real applications
https://archive.org/details/the-sinclair-zx-81-programming-for-real-applications-randle-hurleyacme