Categories

• enviromental studies
• Botany,Zoology
• Economics,Political Science
• History
• Political Science,Zoology
• Political Science
• Environmental Studies
• Chemistry
• History,odiya
• Political Science,History

Authors

• O.,sarad,P.,Ray
• Base A,Jones D
• Hardin
• Panda A.K
• B.,Chakravarti,B.,Chakravarti
• Manocha
• Roy & Padhy
• Khan, M.Q.
• v.b. rao
• Das , g.p.