Categories

• Chemistry
• Botany
• Economic
• History
• Others,History
• Physics,History
• odiya
• enviromental studies
• Eng
• Other

Authors

• Roy .T.
• R.K.
• Acharya , S.K.,Acharya , S.K.
• Wayper, C.L
• Gupta, R.C ,Prakash S , Sigh
• Vaish , m.l.,Vaish , m.l.
• campbeu
• Garret H.E
• Mohanty S.B.
• Sataya, Shida