Nilarat Premmanisakul. (1999) Risk factors of mortality associated with motor vehicle accidents in Saraburi province. Mahidol University,:ม.ป.ท.Nilarat Premmanisakul. 1999. Risk factors of mortality associated with motor vehicle accidents in Saraburi province. ม.ป.ท.:Mahidol University,;Nilarat Premmanisakul. Risk factors of mortality associated with motor vehicle accidents in Saraburi province. ม.ป.ท.:Mahidol University, 1999. Print.