Gaya APA
Statustics for business and economics. (2008).
New Yersey:
Pearson Education.
Gaya Chicago
Statustics for business and economics.
10.
New Yersey:
Pearson Education,
2008.
Buku.
Gaya MLA
Statustics for business and economics.
10.
New Yersey:
Pearson Education,
2008.
Buku.
Gaya Turabian
Statustics for business and economics.
New Yersey:
Pearson Education,
2008.
Buku.