Mukundan Sugunan Pillay

Pillay, M.Sugunan, Selim, M.I. & Siru, D., 1994. Drinking-water quality monitoring and surveillance. , pp.p. 8-10: 1 tab., 4 photogr. Available at: https://nl.ircwash.org/sites/default/files/Pillay-1994-Drinking.pdf.