Harvard University -Cambridge, MA, US,
«Childhood diarrhea in sub-Saharan Africa», vol. vol. 2. no. 1. Harvard Institute for International Development, Cambridge, MA, USA, p. 32 p. : 4 photogr., 4 tab., 1998.
A. C. Gorter,
Childhood diarrhoea and its prevention in Nicaragua. Maastricht, The Netherlands: University of Maastricht, 1998, p. 212 p. : tab., fig.