Sen, R. K. (1992). সংখ্যাতত্ত্ব. Modern Publications.
Chicago Style (17th ed.) CitationSen, Raj Kumar. সংখ্যাতত্ত্ব. Dhaka: Modern Publications, 1992.
MLA (9th ed.) CitationSen, Raj Kumar. সংখ্যাতত্ত্ব. Modern Publications, 1992.
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