Categories

• Physics
• enviromental studies
• Political Science
• History
• Others,Botany
• pyschology
• Economics,History
• Eng
• Others,Chemistry
• Political Science,odiya

Authors

• Nanang
• Peck , Cryle
• A.,carter
• Jha , Siddequee
• Devi M
• Das , Acharya, Ratha
• w.v.
• R.,bedi,R.,bedi
• Mohapatra.K,Mohapatra , J.N
• Manocha,Rojev