ZHAIRY, Ali; ADRA, Areej; GHAFAR, Muhammad. Cr (VI) Removal From Tannery Wastewater by Syrian Natural Pyrite as a Reducing Agent. International Journal of Scientific Research in Chemical Sciences, [S. l.], v. 7, n. 6, p. 1–5, 2020. Disponível em: https://ijsrcs.isroset.org/index.php/j/article/view/82. Acesso em: 5 apr. 2025.