APA-čujuhus (7. p.)

Gupta, S. (2002). Statistical methods. S.Chand & Sons.

Chicago-čujuhus (17. p.)

Gupta, S.P. Statistical Methods. New Delhi: S.Chand & Sons, 2002.

MLA-čujuhus (9. p.)

Gupta, S.P. Statistical Methods. S.Chand & Sons, 2002.

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