Simtel MSDOS CDROM.  October 93.  Walnut Creek CDROM.
"DBMS Magazine" listings
path: \msdos\dbms_mag 
Name           Size      Date    Description
============ ========  ========  ====================
DBMS9101.ZIP    12784  11-20-90  DBMS Magazine source code - Jan 1991
DBMS9102.ZIP     6215  12-20-90  DBMS Magazine source code - Feb 1991
DBMS9103.ZIP    68319  02-17-91  DBMS Magazine source code - Mar 1991
DBMS9104.ZIP    26767  03-25-91  DBMS Magazine source code - Apr 1991
DBMS9105.ZIP     8856  03-28-91  DBMS Magazine source code - May 1991
DBMS9106.ZIP    15333  05-13-91  DBMS Magazine source code - Jun 1991
DBMS9107.ZIP    82886  06-13-91  DBMS Magazine source code - Jul 1991
DBMS9108.ZIP    58578  07-25-91  DBMS Magazine source code - Aug 1991