Phetdavanh Leuangvilay และ Wattasit Siriwong. (2011) Associated environmental factors, knowledge and practice regarding to anthrax infection in human in Salavan District, Salavan Province, Lao PDR : case-control study. Chulalongkorn University:ม.ป.ท.Phetdavanh Leuangvilay และ Wattasit Siriwong. 2011. Associated environmental factors, knowledge and practice regarding to anthrax infection in human in Salavan District, Salavan Province, Lao PDR : case-control study. ม.ป.ท.:Chulalongkorn University;Phetdavanh Leuangvilay และ Wattasit Siriwong. Associated environmental factors, knowledge and practice regarding to anthrax infection in human in Salavan District, Salavan Province, Lao PDR : case-control study. ม.ป.ท.:Chulalongkorn University, 2011. Print.