Gaya APA
Sual, D, J, J, L, D, R, Y.
(1989).
Basic Microscoft Versi CP/M
.
Jakarta:
Mutiara Sumber Widya.
Gaya MLA
Sual, Drs., John, J, Longkutoy, Dan, Reinhard, YH.
"Basic Microscoft Versi CP/M".
Jakarta:
Mutiara Sumber Widya,
1989.
Text.