R. Martin, Ozawa, K., Hashimoto, T., Ueda, K., Matous, P., Kawabata, W., De Vera, T., Abis, B., y Pablo, C. T.,
«Impact evaluation study on public-private partnership : the case of Angat Water Supply Optimization Project and the Metropolitan Waterworks and Sewerage System, Republic of the Philippines : final report». Japan Bank for International Cooperation, Tokyo, Japan, p. [11] p., 118 p., 74 p. append. : fig., tab., 2003.