Dock, V. Thomas
Cobol: American national standard
Reston Publishing, 1973
 Buku Teks SO
Mcquillen, Kevin
System / 360-370 assembler language (OS)
Mike Murach & Associates, 1975
 Buku Teks SO
Smith, Marilyn Z.
Standard Cobol: a problem-solving approach
Houghton-Mifflin, 1974
 Buku Teks
Bernard, Solomon Martin
System 360 Cobol
Prentice-Hall, 1968
 Buku Teks
Seidel, Kenneth P.
Cobol
Goodyear , 1971
 Buku Teks SO