Gaya APA
Catapult, .
(1997).
Microsoft project for windows 95 step by step / Catapult
(
^a1)
.
Jakarta:
Elex Media Komputindo.
Gaya MLA
Catapult, .
"Microsoft project for windows 95 step by step / Catapult".
^a1
Jakarta:
Elex Media Komputindo,
1997.
.