Beginning BASIC
Good BASIC Programming with the BBC Microcomputer
Microprocessors and Microcomputers Their Use and Programming
Using Your Home Computer (practical Projects for the Micro Owner)
Understanding Microcomputers
BASIC in 100 Beispielen
The Sinclair ZX81 Programming for Real Applications
Microcomputer Problem Solving Using PASCAL
Programming Dedicated Microprocessors (Computer Science Series)
Advanced Programming for the 16K ZX81
