Categories

• Chemistry,odiya
• Mathematics
• geography
• Physics,History
• zoolozy
• Environmental Studies
• Biology
• Zoology,odiya
• Economics
• enviromental studies

Authors

• das and mohanty,roy and padhy
• Singh S.R
• jhinsan, ml.,jhinsan, ml.
• Udgata Srinivas
• nayak and rath
• Hussain
• Hirshlifor , Glazca,Agrawal, R.N
• Jain , Bala
• Danie
• Pattnaik, N.R