D. D. Mara, Pinfold, J., and Hubley, J.,
“A hygiene intervention study in rural north-east Thailand”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 9-12: 4 fig., ill., photogr., 1991.
J. Pinfold and Horan, N.,
“Water use and patterns of contamination in rural north-east Thailand”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 27-30: 3 fig., photogr., 1991.