Biblio

S. Khamal, Mendoza, R., Phiri, C., Rop, R., Snel, M., y Sijbesma, C., The joy of learning : participatory lesson plans on hygiene, sanitation, water, health and the environment. Delft, The Netherlands: IRC, 2005, p. iv, 88 p. : photogr.

M. Snel, Postma, L., y Phiri, C., «An effective approach for hygiene education : life skills», in People and systems for water, sanitation and health : proceedings of the 27th WEDC conference, Lusaka, Zambia, 2001, 2002, pp. P. 68-70 : 1 tab.