S. M. Malunga, N. Chaukura, C. I. Mbiriri, W. Gwenzi, M. Moyo, and A. T. Kuvarega, “Visible light photodegradation of methyl orange and Escherichia coli O157:H7 in wastewater”, S. Afr. J. Sci., vol. 118, no. 1/2, Jan. 2022, doi: 10.17159/sajs.2022/10938.