Categories

• Botany,Zoology
• englisg
• Others,Physics
• Others,Chemistry
• Other
• Others,History
• Economics,History
• Economics
• Mathematics
• Education,Zoology

Authors

• Das S.D
• Patnaik, Patra
• Sahu, Dani
• R.K,Tandon
• S,Raul ,Sinha , J.N
• Sigelman
• Others,Kothare
• Kanal ,Leela
• Sharma, barik and das
• r.g.d.