Categories

• Chemistry
• Environmental Studies
• Mathematics
• enviromental studies
• English
• Ethics and Values
• Hindi
• Politicalscience
• Others,Chemistry
• Others,odiya

Authors

• Nanda, C.R.
• Wood, f.t.
• k.,k samal,k.,k samal
• ,Gourdin
• Meher, G.D
• Roy , Yadav , Verma
• Ray, Baijal,A.K,Nanda
• Behera K.C
• P.P
• saha and gang