Categories

• Environmental Studies
• Botany
• Botany,Zoology
• Zoology
• Others,Biology
• Economics
• enviromental studies
• Others,odiya
• Others,Physics
• Physics,odiya

Authors

• Sundar
• Tandon
• Chatwal
• M.,banerjee
• P.,Chandra,Basu , d.d.
• Patra,Das , h.h., p.s.n.
• Grover
• IAN
• mishra and dash,Das , G.N
• M.C Graw Hill,,Gourdin