Lugwisha, E. H., J. A. Mahugija, and C. Mwankuna. “Levels of Formaldehyde and Acetaldehyde in Selected Bottled Drinking Water Sold in Urban Areas in Tanzania”. Tanzania Journal of Science, vol. 42, no. 1, Apr. 2021, pp. 1-14, http://tjs.udsm.ac.tz/index.php/tjs/article/view/273.