Laosombatthawee, Pornpaitoon, Dawan Wiwattanadate, and Sujarinee Kotchawattana. “Recovery of Metals from Electronic Waste by Reduction Melting Method”. Applied Environmental Research 37, no. 1 (February 15, 2015): 49–55. accessed May 13, 2025. https://ph01.tci-thaijo.org/index.php/aer/article/view/30890.