Categories

• Physics,History
• Other
• Physics
• Others,Education
• Others
• Botany
• enviromental studies
• Ethics and Values
• Biology
• psycholigy

Authors

• Enright & Chickera
• R,Nath,Eanes , Macdanies
• Chand & Tripathy
• Naik P.C
• Hare R.M.
• Mahapatra. S.K.
• Agrawal,Verma , Dikshit
• v.s. and vasudevan
• Engle
• J.L,nehru,R.S,mughali