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Sapna, K Assessment of fluoride hazard in groundwater of Palghat District, Kerala: a GIS approach. International Journal of Environment and Pollution, 66 (1/2/3). pp. 187-211.
Sapna, K and Sujithra, B GIS based evaluation of contamination of fluoride in groundwater quality and occurrence of dental fluorosis in Coimbatore district, TamilNadu, India. IOP Conference Series: Materials Science and Engineering. pp. 1-12. ISSN 1757-899X
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Usharani, Krishnaswamy GCMS and FTIR spectral analysis of aqueous methylparathion biotransformation by the microbial mpd strains of Pseudomonas aeruginosa and Fusarium spp. Archives of Microbiology, 203. pp. 5763-5782.