Perez, E., Hnin Pyne, H., Amelink, C., Paynter, N., Briceno, B., Cardosi, J., Coombes, Y., Florez de Cilloniz, R., Devine, J., Frischmuth, C., Grossman, A., Kullmann, C., Nguyen, N.K., Koita, S., Badru, A., and Orsola-Vidal, A., “Global scaling up handwashing project progress report : Peru, Senegal, Tanzania, and Vietnam : July 1–December 31, 2009”. Water and Sanitation Program, WSP, Washington, DC, USA, p. 24 p. : 1 box; 4 fig.; 5 tab., 2010.