Categories

• Environmental Studies
• Botany,Zoology
• History
• Others,odiya
• Political Science,History
• Mathematics
• Physics,odiya
• Others,Biology
• geography
• evs

Authors

• b. and das
• G,Tappent,Thendone
• v.n and others
• apte
• malik and arora,prasad and others
• S,Narayan
• h.i.
• Srivastava, l.n.,Tandon, m.p.
• Sudarsan
• Ghosh, alek