1. The study on pattern of water used among mothers with children aged under 5 in Ronpibool District, Nakorn Sri Thammarat Province: their perception, believe, and behavior;Ajjimangkul,1992
2. Arsenic in water and soil in Ronpibool District;Arrykul,1987
3. Contamination of arsenic, cadmium and lead in Pakpanang River Basin, Nakorn Sri Thammarat Province, Thailand;Arrykul,1996
4. The study on arsenic intake from daily cooked food in Ronpibool District, Nakorn Sri Thammarat Province;Boriboon,1996
5. The review of chronic arsenic poisoning in Ronpibool District, Nakorn Sri Thammarat Province;Choraprapawon,1994