Categories

• Others,Physics
• Economic
• Other
• zoolozy
• Political Science,History
• Others,History
• evs
• Botany,Physics
• Others,Biology
• Physics

Authors

• N.R
• Pati, M.S.
• Prem
• Neill.Judith O,Bala Kryhhan
• Mohanty P.K
• Patnaik, D.,Patnaik, D.
• G.,parry,Das , B.K
• Datt , Sundharam
• John, k.,galtoirath
• Thomas,Pink