Categories

• Others,English
• Education
• enviromental studies
• Biology
• Others,Botany
• Eng
• geography
• Others,odiya
• Others,Physics
• zoolozy

Authors

• K
• Sen, K.K,M.L,Jhingan
• Das R.N
• Thomal
• Kumar U.
• Narayanswami V.R
• b.j.
• Nanda, C.R.
• Sharma, v.r and others
• A.,austen,D.,defoe