Compute's Machine Language Routines for the Commodore 64

Assembly Language Programming with the Commodore 64 Marvin De Jong 1984

Machine Code Games Routines for the Commodore 64 By Paul Roper

Machine Language For The Commodore 64, 128, and Other Commodore Computers - PB

Machine Language for the Commodore 64, 128, and Other Commodore Computers - SB

Games Commodores Play - 1984 Vintage Book of Commodore 64 Computer Game Programs