Somrutai Poothong และ Suwanna Boontanon. (2011) Contamination of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in food packaging. Mahidol University:ม.ป.ท.Somrutai Poothong และ Suwanna Boontanon. 2011. Contamination of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in food packaging. ม.ป.ท.:Mahidol University;Somrutai Poothong และ Suwanna Boontanon. Contamination of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in food packaging. ม.ป.ท.:Mahidol University, 2011. Print.