Pillai, R. S. N., & Bagavathi. (2005). Statistics: Theory and Practice (17th ed.). S. Chand & Company Ltd.
Tohutoru Kātū Chicago (17th ed.)Pillai, R. S. N., me Bagavathi. Statistics: Theory and Practice. 17th ed. New Delhi: S. Chand & Company Ltd, 2005.
Tohutoro MLA (9th ed.)Pillai, R. S. N., me Bagavathi. Statistics: Theory and Practice. 17th ed. S. Chand & Company Ltd, 2005.
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