KHALIFA, K.; HAMIL, A.; ALUWAH, A. Complex Formation of Cr3+, Mn2+, Ni2+ and Cu2+ ions using 1-((2E,3E)-3-(Hydroxyimino)Butan-2-Ylidene)Urea. Journal of Pure & Applied Sciences , [S. l.], v. 17, n. 2, p. 31–38, 2018. DOI: 10.51984/jopas.v17i2.149. Disponível em: https://www.sebhau.edu.ly/journal/jopas/article/view/149. Acesso em: 12 sep. 2026.