Rao P.S.S Sundar. (2006). INTRODUCTION TO BIOSTATISTICS AND RESEARCH METHODS (4th ed.). Prentice Hall India private Limited.
Citace podle Chicago (17th ed.)Rao P.S.S Sundar. INTRODUCTION TO BIOSTATISTICS AND RESEARCH METHODS. 4th ed. New Delhi: Prentice Hall India private Limited, 2006.
Citace podle MLA (9th ed.)Rao P.S.S Sundar. INTRODUCTION TO BIOSTATISTICS AND RESEARCH METHODS. 4th ed. Prentice Hall India private Limited, 2006.
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