Jensen, T. E., M. C. Crang, and R. F. Crang. “Equipment Design for Biosorption Studies With Microorganisms”. Electronic Journal of Biotechnology, vol. 11, no. 4, Oct. 2008, pp. 0-0, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v11n4-1.