Categories

• Education
• Others,Education
• englisg
• Biology,odiya
• pyschology
• Physics
• Economics,History
• enviromental studies
• psycholigy
• Others,Physics

Authors

• Tjhensen S
• batra
• Srivastava,Sisha ,Trivedi,Pandly
• Allen, w.s.,Allen, w.s.
• Gurackharan
• sahu and parida
• H.E,Garrett
• Ratha K.C
• drew
• brijlal and subramayam,khane and s. kumar