Categories

• Economics,Political Science
• Physics
• Political Science
• evs
• Ethics and Values
• zoolozy
• Environmental Studies
• Zoology
• Biology
• Others,Botany

Authors

• Gupta, S.N,Sharma, barik and das
• M.C Graw Hill,,Gourdin
• mankiw, n.g,sandana and malhotra
• Tilak Raghukul,Mishra , Nanda
• Nayak, M.K
• N.R
• B.C,Jena
• k.k. and sundaram k.p.m.
• hazen
• Odum