Costa, Vinícius, Ariane Neiva, and Edenir Pereira-Filho. 2019. “Chromium Speciation in Leather Samples: An Experiment Using Digital Images, Mobile Phone and Environmental Concepts”. Eclética Química 44 (1):62-74. https://doi.org/10.26850/1678-4618eqj.v44.1.2019.p62-74.