Categories

• Others,Physics
• Zoology,odiya
• Economic
• Education
• Others
• Other
• Chemistry
• Others,Biology
• Economics,Political Science
• Eng

Authors

• Verma , v.
• s.d.
• Prasad ,Sonpal & Vaishnav
• Singh -Katyal
• Ralhan
• U
• Odum
• Hamitton, Paul
• Nayak, k.c.,k.,kripalini
• Morrison ,Boyd