Z80 Assembly Language Programming for Students
Assembly Language Assembled for the Sinclair ZX81
CP/M 80 Programmer's Guide
Advanced Programming for the 16K ZX81
Program Your Microcomputer in BASIC
The Sinclair ZX81 Programming for Real Applications
Using CP/M
An Introduction to Low Level Programming for Microprocessors
Microprocessors and Microcomputers Their Use and Programming
Microprocessor and Microcomputer Technology
