Bowerman Bruce L, & O Connell Richard. (2007). Business Statistics in Practice. American: McGraw -Hill.
Chicago Style aipamenaBowerman Bruce L, và O Connell Richard. Business Statistics in Practice. American: McGraw -Hill, 2007.
MLA aipamenaBowerman Bruce L, và O Connell Richard. Business Statistics in Practice. American: McGraw -Hill, 2007.
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