Dipankar Ghosh
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পঞ্চাশের দশকের শেষের দিকের একটি ভালো ছবি।
Neel Akasher Neechey
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Study with this book is best book of self learning. No need of help of any teacher for basic calculus. I learned calculus when was at class IX (Science) without help of anybody to study mechanics.
Calculus Made Easy
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Very good book for learning communism.
Four essays on philosophy
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