AL-TAWEEL, H.H.; ALI, M.J.; AL-AZAWI, K.M. Separation of cobalt from spent catalyst CoMo by precipitation and Ion exchange techniques. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 22, n. 2, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1234. Acesso em: 14 mar. 2025.