Categories

• Others,Chemistry
• Hindi
• Logic
• Politicalscience
• Economics,Political Science
• Others,Education
• Biology
• evs
• Education,Zoology
• Mathematics

Authors

• Chandra, Bipan
• Venkateswar
• k.p.
• P.,maity,Samal, g.k.
• Swain , R,Sanala Sahita Soyaa
• Mathors
• R.N.,Agrawala
• K.C
• Mohanty , Saha,Mohanty , Saha
• Keemtilal & Kathuria