Categories

• Education,odiya
• Political Science,History
• Others,Physics
• Chemistry
• Education
• Economics,History
• Botany,Zoology
• Physics,History
• enviromental studies
• Logic

Authors

• watt lan
• Singh Govinda
• Chanda
• kachroo
• Khurana K.L
• soanes and hawker
• Kumar L.
• Pandey B.P.
• Saxena , Sorlahoy,Nanda, C.R
• Das , H.K.,Nayak, k.