A. Chatterjee y Almedom, A.,
«Indicators for sanitation : yardsticks for cleanliness?»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 6-9: 2 fig., 1 tab., photogr., ill., 1995.
A. Almedom y Curtis, V.,
«Studying hygiene behaviour - where are we now?»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 2-5 : 3 photogr., 1 tab., 1995.