Categories

• Economics
• Chemistry
• Hindi
• Mathematics
• Education
• History,odiya
• enviromental studies
• Biology
• Others,Chemistry
• Odia

Authors

• Jena, g.s.,Jena, g.s.
• Biray.U,Iyengan, K.R.S
• Biswas , d.k.
• Parida,B.C,N.C,Ray
• D.J
• pati and pati,Samal, s.s.
• Raul
• L.R
• Abrams, m.h.,j.m.,barrei
• Henderosm