ZEHRA, B.; NAWAZ, H. R.; SOLANGI, B. A.; NADEEM, U.; AYAZ, T.; ZEESHAN, M. An Efficient Recovery of Chromium From Tanning Liquor waste and its Reutilization for the Production of Quality Leather. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 41, n. 1, p. 263–270, 2018. Disponível em: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3946. Acesso em: 2 may. 2024.