Subbayya, N.V.2021-07-012021-07-011994Affordable Water Supply and Sanitation:Proceedings of the 20th WEDC Conference, Taj Samudra Hotel, Colombo, Sri Lanka, 22-26 August 1994:p.322-324https://dl-iesl.nsf.gov.lk/handle/1/3451Integrated rural development for a better environmentConference Paper