Categories

• Physics
• Education,odiya
• Political Science,Education
• Other
• Economic
• Others
• enviromental studies
• geography
• Mathematics
• Economics

Authors

• Mcfanlane ,J.W
• Reddy, M.V. Laxmi
• Huheey
• Bhatta, A
• gold smith oliver
• S.T
• S.
• Patnaik, B.
• Rout R.N
• allen and campbeu