Gupta,S P. (2021). Statistical Methods (46 th Ed.). S. Chand.
Chicago-čujuhus (17. p.)Gupta,S P. Statistical Methods. 46 th Ed. New Delhi: S. Chand, 2021.
MLA-čujuhus (9. p.)Gupta,S P. Statistical Methods. 46 th Ed. S. Chand, 2021.
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