Explore Books on
subroutine

32 basic programs for the PET computer

By Tom Rugg

Programming microprocessors

By M. W. McMurran

David Ahl's Basic computer adventures

By David H. Ahl

Commodore 128 data file programming

By Miller, David

25 Graphics Programs in Microsoft BASIC

By Timothy J. O'Malley

Invitation to FORTRAN for the TRS-80

By Lawrence L. McNitt

TRS-80 assembly language subroutines

By William T. Barden