Categories

• enviromental studies
• Botany,Physics
• IT
• Political Science,Zoology
• Political Science,History
• Education
• Education,Zoology
• Botany,Zoology
• Economics
• Physics,History

Authors

• Mallik H.K,Mohanty P
• c. & riesman
• Mukarji J
• Sahu,J.K
• P.,Dhawan
• Boss, S.L
• j.r
• Hewand W.L
• K.K,pani ,das and mohanty
• Macmillans