Categories

• Biology,odiya
• geography
• Other
• Economics,Political Science
• Botany,Physics
• Chemistry
• History
• Computer Science
• Philosophy
• Others,English

Authors

• Kotpal, R.H,Juneja,Bhamrah
• william n.
• Sharma Shahoo
• Das ,N.N.
• Bhagwan
• Bahl , g.d., b.s. and tuli
• G,Lefebure
• N.K,Jitu
• Sherma
• vvr