Categories

• Education
• zoolozy
• Hindi
• Others,Botany
• Economics,Political Science
• Zoology
• Education,Zoology
• Economics
• enviromental studies
• Physics,odiya

Authors

• thyagaraju
• Zemansky
• Radice W
• mishra and jena
• Dwilleeli S.N
• Bendre , A.
• Neogi
• Odum , E.P,Trivedi,Pandly
• b.s.,gotlfried
• P.S,Bright