Categories

• Physics,History
• Odia
• Others,History
• zoolozy
• Others,Physics
• economy
• geography
• Economics
• Eng
• englisg

Authors

• Jenkins
• d.c.,kuanr
• Shanpe, A.G
• J.C.,Aggarwal
• Bpse
• R.K,Narayan ,Biray.U
• S,Achatya ,S,Achatya
• Davice
• Lokman S.M.
• Basu , d.d.,Singh, S.