The CP/M handbook with MP/M by Rodnay Zaks
CP/M 2.2 Editor
CP/M Plus (Version 3 Operating system) Programmers guide
Mastering CP/M by Alan R. Miller
Inside CP/M A Guide for Users and Programmers with CP/M-86 and MP/M2 by Davis E. Cortessi
The Programmers CP/M Handbook by Andy Johnson-Laird
CP/M-86 Operating System Programmers Guide Jan 83
Pascal MT+ Language Programmers Guide for the CP/M  operating system Mar 83
Soul of CP/M by Mitchell Waite & Robert Lafore