Gaya APA
Puspitosari, H.
(2010).
Having Fun With Microsoft Excel 2007
.
Yogyakarta:
Pt Skripta Media.
Gaya MLA
Puspitosari, Heni.
"Having Fun With Microsoft Excel 2007".
Yogyakarta:
Pt Skripta Media,
2010.
Text.