Sapna, K and Poongodi, K S (2020) Surveillance of groundwater quality of selected rural and industrial areas of Coimbatore: A GIS Approach. IOP Conference Series: Materials Science and Engineering, 6. pp. 1-12. ISSN 1757-899X
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