Water and Sanitation Program - East Asia and the Pacific -Jakarta, ID, WSP-EAP,
«Economic impacts of sanitation in Southeast Asia : summary : a four-country study conducted in Cambodia, Indonesia, the Philippines and Vietnam under the Economics of Sanitation Initiative (ESI)». Water and Sanitation Program - East Asia and the Pacific, WSP-EAP, Jakarta, Indonesia, p. 23 p. : 10 fig., 11 tab., 2007.