GUPTA S P. (2004). STATISTICAL METHODS (32ND.). SULTAN CHAND AND SONS.
Chicago-čujuhus (17. p.)GUPTA S P. STATISTICAL METHODS. 32ND. NEW DELHI: SULTAN CHAND AND SONS, 2004.
MLA-čujuhus (9. p.)GUPTA S P. STATISTICAL METHODS. 32ND. SULTAN CHAND AND SONS, 2004.
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