Categories

• geography
• Politicalscience
• Chemistry
• enviromental studies
• Others,Chemistry
• Mathematics
• Political Science,Zoology
• Sanskrit
• Others,Botany
• Political Science,odiya

Authors

• Mohapatra C.P.
• G.K.Publication
• Sinha , J.N,Arora, Singh
• Hewand W.L
• Samuel Jhorson
• Baron , Bynne
• Ghosh & Mukhopadhyaya
• m.h.
• isranal, s.m.
• butler