Categories

• Botany,Zoology
• Economics,History
• Physics
• evs
• Botany,Physics
• economy
• IT
• Others,Chemistry
• Others,English
• Others,History

Authors

• Ray, R.K.
• Glazca
• Gautam D.N.
• R.,Safeya,R.,Safeya
• Seth, M.L,Sen, K.K
• Nayak, B.K.,B.P,Lenka
• Hardy Thomas
• Panigrahi , S.C
• Mishra , B.K.,B.P,Lenka
• David,murdoch,David,murdoch