FAISAL, MUHAMMAD, YOICHI ATSUTA, and HIROYUKI DAIMON. 2010. “Effect of Agitation on the Extraction of Palladium from Spent Industrial Catalyst With Supercritical Carbon Dioxide”. Asian Journal of Chemistry 22 (3):1693-99. https://asianpubs.org/index.php/ajchem/article/view/11323.