Categories

• evs
• Chemistry
• enviromental studies
• Hindi
• Chemistry,odiya
• Economic
• englisg
• Logic
• IT
• Others,Chemistry

Authors

• A.E.,cox c.b. and dyson,A.E.,cox c.b. and dyson
• Elam
• A.C
• Pradhan G.P.
• Real
• Mittra , Bakshi
• R.,Safeya
• Das Bunra
• Gupta, S.B.,Lekhi , R.K.
• Das , k.b.,Acharya , b.c.