Categories

• geography
• Economic
• Education
• Physics,History
• Biology,odiya
• Others,Education
• enviromental studies
• Others,Chemistry
• Others,Botany
• Others,English

Authors

• R.N.
• Datta J.K,Mohapatra R.N
• Nayak,P.M.
• langsam and mitchell
• Prasad, B.
• behera and dash
• Batna S
• Tiwari P.M
• Das , Ratan
• Hill , h.e.,Hill , h.e.