Barnard, David T.
PL/1 programming problems and applications
Reston Publishing Company, Inc., 1982
 Buku Teks SO
Maynard, Jeff
Modular programming
Butterworth, 1972
 Buku Teks SO
Morgan, Carroll, 1952-
Programming for specifications
Prentice-Hall, 1994
 Buku Teks SO
Donovan, John J.
Systems programming
McGraw-Hill, 1972
 Buku Teks SO
Yazdani, Masoud
Start programming with the electron
Addison-Wesley, 1983
 Buku Teks