Categories

• Education
• Economics,Political Science
• enviromental studies
• Education,Zoology
• Eng
• Physics,odiya
• Biology
• Environmental Studies
• evs
• Economics

Authors

• Chatterjee
• Das A.K.
• Sharma C.D
• KRS
• chand and tripathy,satpathy and nahaka
• Kapur
• Rickett
• J,Sinclain,R.D,Trivedi
• K.C,Pradhan
• b.r.,vashishtha,b.r.,vashishtha