Categories

• Others,Biology
• Political Science,Education
• Physics,History
• Chemistry
• Physics,odiya
• Other
• Others,English
• Environmental Studies
• geography
• Others,Physics

Authors

• charlton
• Datt , k.p.m., r and sundaram,Datt , k.p.m., r and
• V.V
• Dhir & Das
• O
• satake
• D.D,Balu
• Arora, C.C
• Subhendra Nandan,Das G.H
• Panigrahi , k.c.,Rout, b.d.