Pratiyogita Darpan
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Rs. Upkar's Chemical Sciences (Paper-I) 997 1507- (By : Dr. Hemant Kulshrestha
& Dr. Ajay Taneja) Upkar's Chemical Sciences (Paper-II) 463 3407- (By : Dr.
Hemant Kulshrestha & Dr. Ajay Taneja) Upkar's Mathematics (Paper-I) (By : Dr. A.