Categories

• Other
• Education,Zoology
• geography
• Biology,odiya
• zoolozy
• pyschology
• Physics,odiya
• odiya
• Botany,Physics
• Others,Physics

Authors

• Abrams, Harpham
• Brylon , Alan
• Acharya & B.C
• Kenney
• Gupta, P.K,Sharma, barik and das
• Kapoor
• W.T,Andrews
• aggarwala and stock
• akn
• Rout, M.K., b.c. and mohapatra