Gaya APA
Catapult, . (2000).
Microsoft : excel 2000 Microsoft office application step by step (Cet. ke-2).
Jakarta:
Fakultas konomi niversitas Indonsia.
Gaya MLA
Catapult, .
"Microsoft : excel 2000 Microsoft office application step by step".
Cet. ke-2
Jakarta:
Fakultas konomi niversitas Indonsia,
2000.
Text.