Biblio

C. Sijbesma y Christoffers, T., «The value of hygiene promotion : cost-effectiveness analysis of interventions in developing countries», Health policy and planning, vol. 24, n.º 6, pp. 418-427 : 1 fig., 3 tab., 2009.

T. Christoffers, van Wijk, C., y Njuguna, V., «The value of hygiene promotion : cost-effectiveness analysis of hygiene promotion interventions». Water and Environmental Health at London and Loughborough (WELL), Loughborough, UK, p. 19 p. : 1 fig., 1 tab., 2003.