Categories

• economy
• Environmental Studies
• Botany,Zoology
• Others,Physics
• Others,Biology
• Computer Science
• enviromental studies
• Economics,History
• psycholigy
• Others,Botany

Authors

• Rao M.S
• Duncan
• Gandmer
• Santrock J.W.
• Panda Ku , Panda N,Panda Ku , Panda N
• Lall
• Boor
• Nanda, S.K.,bhatia and purohit
• G.C,Das
• Das S.N.