Categories

• IT
• Economics,History
• Political Science,Education
• enviromental studies
• Other
• Chemistry
• Environmental Studies
• zoolozy
• Political Science,Zoology
• Logic

Authors

• d.p.
• N.C,Ray,M.C,Seth
• Das,Sharma
• patri and patri,das and sahu
• Mukharjee .M.
• Myrdal, Gurnar
• Jena, b.b.
• Satpathy, Hembram
• M.R,Kale,M.R,Kale
• Thamarasseri &Petteti