धातु विज्ञान : डॉ. दयास्वरूप द्वारा हिन्दी पीडीएफ़ पुस्तक | Dhaatu Vigyaan : by Dr. Dayaswaroop Hindi PDF Book
Pustak Ka Vivaran : Dhaatu vigyaan vishey par raashtrabhaasha me likhi gayi pratham pustak aapake haath me hai. yah vigyaan ke charamotkarsh evan udyog dhando kee unnati ka yug hai. pragatisheel videshi bhaashaon me vaigyaanik evan audhogik vishayon par sahasatron granth likhe ja chuke hai. nity naee naee pustaken nikal rahee hai. yah hamaara durbhaagy hai ki is kshetr me hindee me keval inee ginee pustaken hai…………
Description about eBook : The first book written in the national language on the subject of metallic toxicity is in your hands. It is an era of the climax of science and the advancement of industry bonds. Millennial texts have been written on scientific and industrial topics in progressive foreign languages. Random new books are emerging. It is our misfortune that in this field there is only this Guinea books in Hindi…………..
