Gaya APA
O'Connell, R, T., Bowerman, B, L. (2007).
Business Statistics in Practice (Fourth).
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McGraw-Hill.New York.
Gaya MLA
O'Connell, Richard, T., Bowerman, Bruce, L.
"Business Statistics in Practice".
Fourth
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McGraw-Hill.New York,
2007.
Skripsi, Tesis, Disertasi.