Biblio

M. Simpson-Hebert, «Low-cost Arborloo offers Ethiopians health and agriculture benefits», Waterlines, an international journal of water, sanitation and waste, pp. p. 12-14 : 2 fig., 3 photogr., 2007.

L. Clark, Simpson-Hebert, M., y Sawyer, R., «La iniciativa 'PHAST' : transformacion participativa para la higiene y el saneamiento : un nuevo enfoque para el trabajo comunitario». World Health Organization (WHO), Geneva, Switzerland, p. vi, 41 p. : 2 fig., 8 photogr., 1996.

L. Clark, Simpson-Hebert, M., y Sawyer, R., «L'initiative 'PHAST' : participation a la transformation de l'hygiene et de l'assainissement : une nouvelle methode de travail avec les communautes». World Health Organization (WHO), Geneva, Switzerland, p. vi, 41 p. : 2 fig., 8 photogr., 1996.

L. Clark, Simpson-Hebert, M., y Sawyer, R., «The PHAST initiative : participatory hygiene and sanitation transformation : a new approach to working with communities», vol. no. 1. World Health Organization (WHO), Geneva, Switzerland, p. vi, 39 p. : 2 fig., 8 photogr., 1996.