ANDERSON, D. &. O. (2011). STATISTICS FOR BUSINESS AND ECONOMICS - II ED (II ND.). CENGAGE LEARNING.
Lua i Stíl Chicago (17ú heag.)ANDERSON, DAVID & OTHERS. STATISTICS FOR BUSINESS AND ECONOMICS - II ED. II ND. DELHI: CENGAGE LEARNING, 2011.
Lua MLA (9ú heag.)ANDERSON, DAVID & OTHERS. STATISTICS FOR BUSINESS AND ECONOMICS - II ED. II ND. CENGAGE LEARNING, 2011.
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