Categories

• Biology
• History
• Environmental Studies
• Political Science,History
• zoolozy
• Botany,Physics
• Economics,Political Science
• evs
• Chemistry
• Others,Education

Authors

• D.K,Pattanaik
• Gupta, B.n., r.d. and das
• sashtri, h.g.,dadhicha, s.d.
• Das N.C.
• A.P
• Raj Shalini
• Das , n.k.
• Joshi, sinha and gupta
• Delvin.S.
• Hiurlock E.B