Pathogenic microbial and physio-chemical contamination status, and Antibiotic resistance of Isolated Salmonella Spp. In well Water of Jaffna Peninsula, Sri Lanka - Padeniya, S. M. U. M. K; Mahagamage, M. G. Y. L; Manage, P.M (International Symposium on Water Quality and Human Health: Challenges Ahead Postgraduate Institute of Science, 2019)