Categories

• Physics
• Logic
• Others,Chemistry
• Hindi
• zoolozy
• Ethics and Values
• Economics
• geography
• Biology
• Other

Authors

• Edwards, d.v.,Edwards, d.v.
• Lessing, Doris
• M.,malleson,M.,malleson
• Widder D.V
• Arora P.
• Patnaik, D.,Patnaik, D.
• Arora,Chander
• Panigrahi , R.,Joshi, sinha and gupta
• Rout, B.N
• Jena, b.b.,Jena, b.b.