Gaya APA
Tennick,Art, . (2011).
Practical powerpivot & dax formulas for excel 2010 .
United States Of America:
MC GRAW HILL.
Gaya MLA
Tennick,Art, .
"Practical powerpivot & dax formulas for excel 2010".
United States Of America:
MC GRAW HILL,
2011.
Teks.