Categories

• Computer Science
• History
• Economics,Political Science
• Politicalscience
• Education,Zoology
• Others,Biology
• Logic
• Economics
• Political Science,Education
• Others,Physics

Authors

• singh and jena
• leith
• gaba, op.,Goel , r.g.
• Crisp
• Vashistha , b.r.
• S.K.,ranganathan
• Patnaik, K.M.
• S.,supakar,J.L,nehru
• Singh, S.B.,Singh, S.B.
• J.,connacl