Varma, B. L. (1994). Biostatistics (1st edition.). C B S.
Tohutoru Kātū Chicago (17th ed.)Varma, B L. Biostatistics. 1st edition. New Delhi: C B S, 1994.
Tohutoro MLA (9th ed.)Varma, B L. Biostatistics. 1st edition. C B S, 1994.
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