Chopra, J. (2010). Unique quintessence of Indian History: For U.P.S.C. and state civil services examinations and other competitive examinations. Unique.
শিকাগো স্টাইলে সাইটেশনChopra, J.K. Unique Quintessence of Indian History: For U.P.S.C. and State Civil Services Examinations and Other Competitive Examinations. New Delhi: Unique, 2010.
এমএলএ সাইটেশনChopra, J.K. Unique Quintessence of Indian History: For U.P.S.C. and State Civil Services Examinations and Other Competitive Examinations. Unique, 2010.
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