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R. R. Gupta

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Aromaticity in Heterocyclic Compounds
Physical methods in heterocyclic chemistry
Heterocyclic chemistry
Phenothiazines and 1,4-benzothiazines: Chemical and biomedical aspects (Bioactive molecules)
Heterocyclic Chemistry 2: Five-Membered Heterocycles
Physical Methods in Heterocyclic Chemistry (General Heterocyclic Chemistry)
Heterocyclic Chemistry (2 Vol. Set)
Electrical Engineering Exam Prep
Electrical Engineering Exam Prep Problems and Solutions
Chemical Shifts and Coupling Constants for Phosphorus-31, Part 3 Nuclear Magnetic Resonance Data
Chemical Shifts and Coupling Constants for Phosphorus-31, Part 2 Nuclear Magnetic Resonance Data