Singh, R.S. and Roy, A.K., “Development and implementation of low-cost sanitation investment projects : report on mission to Nepal : September 15-22, 1984”, vol. TAG/NEP/10. World Bank, Washington, DC, USA, p. 11 p.: tab., 1984.

Roy, A.K., Chatterjee, P.K., Gupta, K.N., Khare, S.T., Rau, B.B., and Singh, R.S., “Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India”, vol. no. 10. World Bank, Washington, DC, USA, p. iii, 109 p. : tab., techn. drawing, 1984.

Singh, R.S., “Demonstration project in low-cost water supply and sanitation : report on mission to Nepal : November 24-27, 1982”, vol. TAG/NEP/07. World Bank, Washington, DC, USA, p. 10 p., 1983.

Singh, R.S., “Development and implementation of low-cost sanitation and investment projects : report on mission to Nepal : January 28 - February 8, 1983”. World Bank, Washington, DC, USA, p. 24 p., 1983.

Singh, R.S., Roy, A.K., Chatterjee, P.K., Gupta, K.N., Khare, S.T., and Rau, B.B., “Manuel de conception, de construction et d'entretien de latrines bon marche a siphon et a rincage manuel en Inde”, vol. no. 10. World Bank, Washington, DC, USA, p. xiv, 111 p.: techn. drawings, tab., 1983.

Singh, R.S., “Report on mission to Nepal”. UNDP (United Nations Development Programme), New York, NY, USA, p. 7, 2 p., 1983.