Gaya APA
Document centre 451/551 series : user guide (printer). (1993).
Malang:
The Document Company.
Gaya Chicago
Document centre 451/551 series : user guide (printer).
.
Malang:
The Document Company,
1993.
Text.
Gaya MLA
Document centre 451/551 series : user guide (printer).
.
Malang:
The Document Company,
1993.
Text.
Gaya Turabian
Document centre 451/551 series : user guide (printer).
Malang:
The Document Company,
1993.
Print.