Categories

• Others,Chemistry
• geography
• Hindi
• Biology
• Others,Botany
• Political Science,Zoology
• enviromental studies
• Physics,History
• Environmental Studies
• Botany,Physics

Authors

• muself
• Satapathy k.C.
• Michelsm R.
• Johari, J.C,Pylee . M.V
• Kumar A. &Kumar M.
• Lekhi
• Tandeja
• Conrad, Jogeph,Meher, Raghunath
• verghese t.m.,nigam and kumar
• Mohanty N.