Categories

• enviromental studies
• Economics,Political Science
• Education
• Others,Education
• englisg
• Economic
• Physics
• Hindi
• Other
• Others,Chemistry

Authors

• P.,wayne,P.,wayne
• S.C.,rastogi ,Ahsan , s.p., j. & sinha
• R.L
• Sahu & Das
• Singh A.K
• Panda
• Das , Patne
• R.K,Meher,Panda, M.K.
• G.D,Maupassant
• Behera, B.K