Categories

• Education,Zoology
• Physics
• Others
• Politicalscience
• Chemistry
• Economics
• Other
• Philosophy
• enviromental studies
• Hindi

Authors

• Singh Sukhleir
• B.N,Behera
• Cryle
• B.S. Gotlfried
• jordan and verma,Samal, Mishra , Mohanty
• Mcfanlane ,J.W
• kindleberger and herrick bruce
• Swain , Pradhan, Khatoi
• V.K,Ariora
• Route