Categories

• odiya
• Botany,Physics
• Physics,odiya
• Environmental Studies
• Education,Zoology
• Biology
• Others,Education
• evs
• enviromental studies
• Botany

Authors

• Das , Biswarup
• brown penuy
• Biswas , d.k.,Biswas , d.k.
• Gupta R.C.
• Singh P.K
• read
• galbraith
• Das,Sharma Nanda ,Rao, Sen , Sukla
• J.,kennett,J.,kennett
• Postman , Egan