Categories

• evs
• Physics,History
• economy
• Botany
• Computer Science
• Other
• Environmental Studies
• Political Science,Education
• Physics
• History

Authors

• P.,Arora,P.,Arora
• Satishkumar
• Sharma, v.
• Dash G.M.
• K.C,Mohanty ,Nayak, M.K
• Nayak,B.C
• G,Hammond
• B.P,Tyogi,B.P,Tyogi
• mishra and dash,Mishra , mohanty and praharya
• Baksh S.R