Categories

• Others
• Physics
• Chemistry
• Botany,Physics
• geography
• enviromental studies
• Politicalscience
• Logic
• Environmental Studies
• Botany

Authors

• Herstein , I.N,G,Prajat
• TilakRaghukul,Tilak R
• Shiva Sahu
• O.P,Agrawal
• yogan
• swanson and webster
• g.c.,field
• Behera, B.K
• Prakash , S.,Prakash , S.
• Nayak, Lenka,Sharma, Sharma