Categories

• enviromental studies
• Economics,History
• Others,Biology
• Mathematics
• Economics
• pyschology
• Education,Zoology
• Politicalscience
• Botany,Physics
• IT

Authors

• Dutta , a.c.,jordan and verma
• Paul, R.R
• Mehta , V.K.
• Acharya , Daj
• saihgal
• Singh,Bipin
• Kothari
• Mishra B,Datt , Sundaram
• M.K,Srivastave
• Gopla M