Categories

• Political Science,Education
• Political Science,Zoology
• economy
• Others,Chemistry
• Hindi
• Political Science
• Botany,Physics
• evs
• Economics,History
• Logic

Authors

• Nandh, R.S.
• Rao, U.
• Triwedi J.K
• sarkar and datta
• Pandey B.P.
• Wolfreys, Julian
• Blatrayar
• Solomons
• Safaye , Shaida
• B.C,Jena,B.B,Kar