HADGU, T.; AMARE, M. Assessment of the level of chromium species in the discharged effluents of Haik and Debre Berhan tanneries in the Amhara Region using ICP-OES and UV-VIS spectrometry. Ethiopian Journal of Science and Technology, [S. l.], v. 9, n. 2, p. 123–138, 2025. Disponível em: https://journals.bdu.edu.et/index.php/EJST/article/view/2041. Acesso em: 4 feb. 2026.