Categories

• Chemistry,odiya
• Zoology
• geography
• Biology
• Others,Political Science
• pyschology
• Hindi
• Mathematics
• Physics,History
• Economics

Authors

• raman and singh
• Agrawal, H.S
• Sourbha A
• Andrews, W.r.
• phogat
• Balan
• B.n.,shahame, v.a. and joshi,B.n.,shahame, v.a. an
• Jit
• Sen, K.K.,Parida, b.c.
• Pelczar