Categories

• Others,Biology
• Other
• Others,English
• Economic
• Others,Physics
• psycholigy
• Botany,Physics
• Mathematics
• Education,Zoology
• economy

Authors

• Nissanke , Thorbacke
• R.K
• Pripathy P.K
• B.B,Kar
• Pattanaik,N.R.
• Allen, W.
• Sonu
• Smith J.M
• N.N.
• Lahiri