Categories

• Political Science,Zoology
• Economics,Political Science
• englisg
• Physics
• Political Science,Education
• zoolozy
• Botany,Physics
• Biology
• economy
• Others,Physics

Authors

• Splegel
• Ballan Tyne
• Sanadhi
• lenka and lenka,ray and nayak
• Mohanty , j.k.
• Chand, v. , m. and anand,Chand, v. , m. and anand
• K.K.
• Mohanty , Parida
• Khan, M.Q,Mohanty ,N
• Ali