Duangta Graipaspong. 1999. Mental health status and its correlates among Thai workers attending physical examination at Siriraj hospital prior to working abroad. Bangkok:Mahidol University;
Duangta Graipaspong. (1999) Mental health status and its correlates among Thai workers attending physical examination at Siriraj hospital prior to working abroad (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Duangta Graipaspong. Mental health status and its correlates among Thai workers attending physical examination at Siriraj hospital prior to working abroad. Bangkok:Mahidol University, 1999.
Duangta Graipaspong. (1999) Mental health status and its correlates among Thai workers attending physical examination at Siriraj hospital prior to working abroad (รายงานผลงานวิจัย). Mahidol University:Bangkok.