Categories

• Economics
• Physics
• Political Science
• Others,Political Science
• Botany,Physics
• Others,Biology
• Physics,History
• enviromental studies
• Political Science,odiya
• Logic

Authors

• Sullivan S,T,Balasubramaian
• Boor
• Roy , Padhy
• R.K,Meher
• kishna, gsp. And others,sahu and sribeytaba
• singh and singh,Banal , j.k.
• Mcmurry
• das and mishra
• Mishra and Others,bhagat and others
• Das , Ratan