Vanxay Souvannamethy. 1997. Factors affecting the tetanus toxoid immunization status of mothers in Saysetha district, Vientiane Municipality, Lao P.D.R. Bangkok:Mahidol University;
Vanxay Souvannamethy. (1997) Factors affecting the tetanus toxoid immunization status of mothers in Saysetha district, Vientiane Municipality, Lao P.D.R. (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Vanxay Souvannamethy. Factors affecting the tetanus toxoid immunization status of mothers in Saysetha district, Vientiane Municipality, Lao P.D.R. Bangkok:Mahidol University, 1997.
Vanxay Souvannamethy. (1997) Factors affecting the tetanus toxoid immunization status of mothers in Saysetha district, Vientiane Municipality, Lao P.D.R. (รายงานผลงานวิจัย). Mahidol University:Bangkok.