Open Software Foundation
OSF/Motif programmer's reference, revision 1.1 / Open Software Foundation
Prentice-Hall, 1991
 Buku Referensi
OSF/motif programmer's guide : revision 1.1
Prentice-Hall, 1991
 Buku Teks SO
Burton, Sharon
Software solutions: concepts and applications
Houghton-Mifflin, 1992
 Buku Teks SO
Wordstar professional release 5: the business standard in word processing software
MicroPro International Corporation , 1988
 Buku Teks SO
Jones, Edward
Using dBASE IV 1.1
Osborne McGraw-Hill , 1990
 Buku Teks SO