Categories

• Physics
• Economic
• Physics,History
• Economics,History
• Others,Biology
• Others,History
• Ethics and Values
• Chemistry,odiya
• Biology,odiya
• Others,Physics

Authors

• Tilak, R
• kennett
• das and mohanty
• d.d. and bal
• Basa, Mallik,Basa, Mallik
• Nayak, n.n.,Tandon, m.p.
• Alamb
• Kundu
• Parida,B.C,N.C,Ray
• Gupta, r.d. ,a.c.,kapur