Oswald, W. E., Hunter, G. C., Lescano, A. G., Cabrera, L., Leontsini, E., Pan, W. K., . . . Gilman, R. H. (2008). Direct observation of hygiene in a Peruvian shantytown: Not enough handwashing and too little water.

Oswald, William E., Gabrielle C. Hunter, Andres G. Lescano, Lilia Cabrera, Elli Leontsini, William K. Pan, Valerie Paz Soldan, ja Robert H. Gilman. Direct Observation of Hygiene in a Peruvian Shantytown: Not Enough Handwashing and Too Little Water. 2008.

Oswald, William E., et al. Direct Observation of Hygiene in a Peruvian Shantytown: Not Enough Handwashing and Too Little Water. 2008.