Categories

• Physics,History
• Economics
• Environmental Studies
• Education,odiya
• Mathematics
• Zoology
• Hindi
• Biology
• Botany,Zoology
• geography

Authors

• Kananth,S.R
• P.K.,misgra
• Mohapatra R.N
• Pachi
• d.k.,bhandari,d.k.,bhandari
• rastogi and aneja,Sharma, nanda and das
• Pattanaik, r.c.
• B,Keith
• Hornly A.S
• Ghosh, s.n.