Categories

• Biology
• Others,Physics
• Physics
• Education,Zoology
• Physics,odiya
• Zoology
• Ethics and Values
• Environmental Studies
• Eng
• enviromental studies

Authors

• salisboury
• Connor
• sangh
• Mohanty , J.
• Lefebure
• Kanungo
• Kelker
• H.E,Garett
• Ratha B.N.
• j.d.