Nala, N.P.

Jagals, P., Nala, N.P. & Joubert, G., 2003. The effect of a water-hygiene educational programme on the microbiological quality of container-stored water in households. , pp.p. 171-176 : 5 fig., 1 tab. Available at: https://es.ircwash.org/sites/default/files/Nala-2003-Effect.pdf.