Drinking water quality and supply in Kerala

समान संसाधन

• Guidelines for drinking water quality
  प्रकाशित: (1997)
• Guidelines for drinking water quality /
  द्वारा: Who
  प्रकाशित: (2006)
• Guidelines for drinking water quality :v.1 recommendations
  द्वारा: World health organisation
  प्रकाशित: (1993)
• Drinking water :
  द्वारा: Moel, P. J. de
  प्रकाशित: (2006)
• Drinking water quality: problems and solutions
  द्वारा: Gray, N.F
  प्रकाशित: (2008)