Vivekananda Mandal grāmatas
Fundamentals of Patents and Patenting
Vivekananda Mandal, Kavi Bhushan Singh Chouhan
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Quick Review on Herbal Drug Technology
Vivekananda Mandal, Kavi Bhushan Singh Chouhan, Roshni Tandey
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Essentials of Botanical Extraction Principles and Applications
Subhash C. Mandal, Vivekananda Mandal, Anup Kumar Das
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