Categories

• enviromental studies
• Chemistry
• English
• Computer Science
• economy
• Education,odiya
• Botany,Zoology
• Hindi
• Other
• geography

Authors

• Bhatia, K.K.,bhatia and purohit
• brijlal and subramayam,khane and s. kumar
• Vas, s.r.
• C,Xavien
• Gupta,Roy Verma
• Malik , Srivastave
• mishra and swain
• Roy , P.,H.K.,mahatab
• Erwin
• Chandra