Categories

• Physics,History
• Biology
• Others,Chemistry
• Others,Biology
• Chemistry
• Others,Political Science
• Environmental Studies
• zoolozy
• Others,English
• Others,History

Authors

• I.A.
• Vashichta, B.R
• Hicks
• S.,Hundinala
• Mohanty , Purohit
• Nanda , Ghosh,Pall
• Paterno
• Kar, K.K.
• paikray
• Raut , Ratnam