1. Identification of suitable plant species for biological water purification;Chandra,1988
2. WHO Guidelines for drinking water quality,1986
3. Relationship between heavy metals and aquatic organisms in lake Mezola hydrographic system (Northern Italy) 4. Metal concentrations in six submerged aquatic macrophytes;Baudo;Mem. first Ital. Idrobiol.,1981
4. Uptake of arsenic, cadmium, lead and mercury from polluted waters by the water hyacinth Eichhornia crassipes;Chigbo;Environ. Pollut.,1982
5. Effects of heavy metals on water hyacinth Eichhornia crassipes (Mart.) Solms;Kay;Aquat. Toxicol.,1984