Categories

• Physics
• Economics,Political Science
• Others,Education
• Political Science,Education
• geography
• Other
• History
• Others,Chemistry
• Zoology
• Philosophy

Authors

• Sen, K.K,M.L,Jhingan
• Diulio , Eugene
• Jha , r.c.
• Kalei
• Prasad Devi
• Sahu, mishra and sahu,Sahu, mishra and sahu
• P.,sidney
• Southan B.C
• Herstein , i.n.,Herstein , i.n.
• Tripaty