Gaya APA
Microsoft excel 2007. (2009).
Yogyakarta:
Andi Yogyakarta.
Gaya Chicago
Microsoft excel 2007.
.
Yogyakarta:
Andi Yogyakarta,
2009.
Text.
Gaya MLA
Microsoft excel 2007.
.
Yogyakarta:
Andi Yogyakarta,
2009.
Text.
Gaya Turabian
Microsoft excel 2007.
Yogyakarta:
Andi Yogyakarta,
2009.
Print.