Categories

• evs
• Physics,History
• Botany,Physics
• Logic
• Others,Chemistry
• Economics
• zoolozy
• Zoology,odiya
• Zoology
• Politicalscience

Authors

• Frcelorn R.
• Chaini , Ratnakara,chattopadhya and rakshit
• Manoj
• l.
• Henbord, C.H
• Sharma, Sharma,Agrawal, Kundanlal
• Mathur, K.K.,Mathur, K.K.
• Souza E.D
• Verma P.S
• J.D,ryder