Gupta, S. P. (2024). Statistical methods (46th.). Sultan Chand & Sons, New Delhi.
Lua i Stíl Chicago (17ú heag.)Gupta, S P. Statistical Methods. 46th. Sultan Chand & Sons, New Delhi, 2024.
Lua MLA (9ú heag.)Gupta, S P. Statistical Methods. 46th. Sultan Chand & Sons, New Delhi, 2024.
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