Tsuda และผู้แต่งคนอื่นๆ. 2002. Factors related to utilization of sanitary latrines in Xiengkhuang province, Lao PDR. Field of Study Primary Health Care Management, Mahidol University;
Tsuda และผู้แต่งคนอื่นๆ. (2002) Factors related to utilization of sanitary latrines in Xiengkhuang province, Lao PDR . Mahidol University/Bangkok.
Tsuda และผู้แต่งคนอื่นๆ. Factors related to utilization of sanitary latrines in Xiengkhuang province, Lao PDR. . Bangkok:Mahidol University, 2002.
Tsuda และผู้แต่งคนอื่นๆ. (2002) Factors related to utilization of sanitary latrines in Xiengkhuang province, Lao PDR . Mahidol University/Bangkok.