Categories

• Botany
• Zoology
• Biology
• Economics
• economy
• psycholigy
• pyschology
• Physics,History
• englisg
• Botany,Physics

Authors

• Patri
• chattopadhya and rakshit
• N.,hawthorne
• sahu and kar,Nanda, s.s. and others
• Tripathy, J
• K.K,Bhatia,Das , B.N
• Baral
• Trivedi,Ram Govind
• Nanda Choudhri
• Bynne