Makarathil parayanirunnathu/

Antzeko izenburuak

• Study on the use and concentration of agrochemicals in Kuttanad region with special reference to chemical fertilizers ( At Kerala State Pollution Control Board Central Laboratory, Cochin)
  nork: Nyrsa, H
  Argitaratua: (2006)
• Effectiveness of environmental education programme in Schools, a case study of Madappally Panchayath ( At SES Kottayam)
  nork: Manju, J
  Argitaratua: (2006)
• Makarathil parayaanirunnathu /
  nork: Karunakaran
• Makarathil parayaanirunnathu
  nork: Karunakaran
  Argitaratua: (1992)
• Makarathil parayanirunath. /
  nork: Karunakaran
  Argitaratua: (1992)