Categories

• geography
• Others,Political Science
• Others,Biology
• Philosophy
• Economics
• Mathematics
• enviromental studies
• Biology
• Others
• Economic

Authors

• m.g.,nayar,Sinha , k.n.
• B.,Upadhyaya
• Samal Mishra
• Lembung, Jeff
• Dhar, b.l.,Tayal, d.c.
• Matthy
• Panda, G.C,Mishra , Pari
• P,Chandra
• campbell
• Das , j.k.