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Study of Heavy Metals Variability and their Effect on Plant Growth in Kanzenze River of Upper Akagera Catchment, Rwanda. International Journal of Hydrology Research, [S. l.], v. 5, n. 1, p. 32–45, 2020. DOI: 10.18488/journal.108.2020.51.32.45. Disponível em: https://archive.conscientiabeam.com/index.php/108/article/view/433. Acesso em: 1 sep. 2026.