JAISWAL, PAYAL. " 1. PHYTO-FILTRATION OF TOXIC HEAVY METAL FROM SEWAGE 1. PHYTO-FILTRATION OF TOXIC HEAVY METAL FROM SEWAGE WATER BY GROWING TRIGONELLA FOENUM-GRAECUM SEEDLINGS HYDROPONICALLY by JAISWAL, P., BAFNA, A. AND BATHAM, A.R.." LIFE SCIENCES LEAFLETS [Online], 88 (2017): n. pag. Web. 20 Oct. 2017