Categories

• geography
• Logic
• Environmental Studies
• Political Science
• Education
• Eng
• Education,Zoology
• enviromental studies
• Hindi
• Chemistry,odiya

Authors

• B.N,Srivastava,A.R,Tyagi
• Swain , A.
• Das , R.C ,Mohanty , S.B
• hazard, j.n.,hazard, j.n.
• Chakirborty
• Patnaik, n.r.,Patnaik, n.r.
• Pandey R.K
• Neill, J.V,Neill, J.V
• Others,Acharya ,Others,Acharya
• Mohapatra, Roy,nat