Somnuk, Chutapa, Bhundit Innawong, and Chanin Tirawattanawanich. 2013. “Cytotoxicity of Used Frying Oil Recovered by Different Adsorbents”. Agriculture and Natural Resources 47 (6). Bangkok, Thailand:874-84. https://li01.tci-thaijo.org/index.php/anres/article/view/243157.