H. Wang, Shi, Y., Kim, Y., et Kamata, T.,
« Valuing water quality improvement in China : a case study of Lake Puzhehei in Yunnan province
», vol. 5766. World Bank, S.l., p. 33 p.; 6 tab., 2011.
Emergency Water, Sanitation and Hygiene group, EWASH,
« Water resources in the West Bank », vol. 2. Emergency Water and Sanitation-Hygiene Group, EWASH, S.l., p. 4 p.; 1fig.; 1 tab.; 1 photograph; 1 box, 2011.