Categories

• economy
• Botany,Physics
• Biology
• Philosophy
• Ethics and Values
• Others,Biology
• Political Science
• Chemistry
• Political Science,Education
• Hindi

Authors

• Vidyanath, R.D,Kotpal, R.L
• R.K.
• marriolt, j.a.r.,marriolt, j.a.r.
• Vaish , Singh,Agrawal, A.N
• Kumar U.
• G.K,Ghash,Bakshi, S.R
• G.K.Publication
• V.K.
• mughali
• a.s.,hornley