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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRAO P.S.S. SUNDAR [A], RICHARD J. [A]. INTRODUCTION TO BIOSTATISTICS AND RESEARCH METHODS - 4TH ED. 4TH. NEW DELHI: PRENTICE-HALL OF INDIA PRIVATE LIMITED, 2007.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিRAO P.S.S. SUNDAR [A], RICHARD J. [A]. INTRODUCTION TO BIOSTATISTICS AND RESEARCH METHODS - 4TH ED. 4TH. PRENTICE-HALL OF INDIA PRIVATE LIMITED, 2007.
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