Categories

• Biology,odiya
• englisg
• enviromental studies
• Zoology
• History,odiya
• Education,odiya
• Politicalscience
• Eng
• Botany,Zoology
• Education

Authors

• Nayak, Swain
• Goyal Tarun
• Goyal,Mittal ,Bist
• Singh Ralei (Tr)
• sashtri j.
• g.d.
• Vaish , m.l.,Vaish , m.l.
• Mahapatra. S.K.
• S.,glasstone,Cotton , f.albert
• Golding, Williom