C. A. van Wijk-Sijbesma,
«HIV/AIDS and water supply, sanitation, hygiene». Water, Engineering and Development Centre, Loughborough University of Technology, WEDC, Loughborough, UK, p. 4 pag. : 1 fig.
J. Fisher,
The HIV/AIDS millennium development goal : what water and sanitation and hygiene can do, vol. no. 5. Loughborough, UK: Water, Engineering and Development Centre, Loughborough University of Technology, WEDC, p. 4 p. : photogr.