Rodjana Suprapan. 1991. Dietary intake of lead and cadmium of Thai adults in Bangkok area. Bangkok:Mahidol University;
Rodjana Suprapan. (1991) Dietary intake of lead and cadmium of Thai adults in Bangkok area (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Rodjana Suprapan. Dietary intake of lead and cadmium of Thai adults in Bangkok area. Bangkok:Mahidol University, 1991.
Rodjana Suprapan. (1991) Dietary intake of lead and cadmium of Thai adults in Bangkok area (รายงานผลงานวิจัย). Mahidol University:Bangkok.