Categories

• Economics,History
• Other
• Ethics and Values
• Education,Zoology
• Computer Science
• englisg
• zoolozy
• Others,Biology
• Others,Physics
• Political Science,Education

Authors

• close, r.a.
• Sharma, Other
• Yeshowardhana
• Khanna
• B.K.,vattacharya,G.,chhotray
• Patnaik, A.,Nayak, n.n.
• Font
• almond g.a and powell g.b.
• P.,Chandra
• Dash, B.n.