P. Kov, Smets, S., Spears, D. E., en Vyas, S.,
“Scaling up rural sanitation : investing in the next generation - growing tall and smart with toilets : stopping open defecation improves children's height in Cambodia”, nr. 85190. World Bank, Water and Sanitation Program (WSP), Washington, DC, USA, p. 8 p. : 2 boxes, 2 fig., 2013.