Categories

• geography
• Other
• Others,Biology
• Physics,odiya
• Education,Zoology
• evs
• Education,odiya
• Computer Science
• Physics
• Philosophy

Authors

• Datt , Sundaram
• G.B.
• Wayper, C.L
• Gupta, S.B.,Gupta, S.B.
• Hammack
• P.K,Chakrabanti
• Singh,Chopra, Dudija
• Ajit
• Sharma, barik and das,Dhar, b.l.
• D.,salvatore,rout and lenka