Categories

• Education,odiya
• Logic
• pyschology
• Physics,History
• Others,Physics
• Botany,Physics
• Political Science,Education
• Eng
• englisg
• Economics

Authors

• Sinha R. K.
• vohra
• Samuel
• e.m.
• Shukla , p.d.,Agrawal, J.C.
• Nanda S
• Dutta. S.
• galbraith
• william n.
• Dickers