Gaya APA
Stewart, K. (2011).
Microsoft Office Excel 2010: A Lesson Approach Complete .
Palangkaraya:
McGRAW HILL _2.
Gaya MLA
Stewart, Kathleen.
"Microsoft Office Excel 2010: A Lesson Approach Complete".
Palangkaraya:
McGRAW HILL _2,
2011.
Buku Teks.