UNICEF -Tegucigalpa, HN, Bombas de Mecate -Managua, NI, IRC International Water and Sanitation Centre, The Hague, NL, SKAT -St. Gallen, CH, Water and Sanitation Program -Washington, DC, US, WSP, y COSUDE -Managua, NI, «First international rope pump policy workshop, Managua, Nicaragua, May 14th - 19th, 2001 : workshop file». SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. loose leaf, ca. 150 p., 2001.

Bombas de Mecate -Managua, NI, Community Water and Sanitation Agency -Accra, GH, y Water and Sanitation Program -Washington, DC, US, WSP, «Rope pump : private sector technology transfer from Nicaragua to Ghana», vol. no. 5. Water and Sanitation Program, WSP, Washington, DC, USA, p. 5 p. : boxes, photogr., 2001.

Bombas de Mecate -Managua, NI, «Support technology transfer of rope pump : Nicaragua - Ghana : progress report on phase 1 : period : October/November 1999». Bombas de Mecate, Managua, Nicaragua, p. 20 p., 1999.

Bombas de Mecate -Managua, NI, «Epidemiology water & sanitation : the rope and washer pump : compilation of articles related to epidemiology and water & sanitation which composed the scientific impulse for the later development and introduction of the rope and washer pump». Bombas de Mecate, Managua, Nicaragua, p. 85 p. : fig., photogr., tab., 1996.