Philip, J. Y. N. ., John, S. . and Othman, O. C. . (2018) “Levels of heavy metals in selected facial cosmetics marketed in Dar es Salaam, Tanzania”, Tanzania Journal of Science, 44(2), pp. 81–88. Available at: https://tjs.udsm.ac.tz/index.php/tjs/article/view/246 (Accessed: 29 April 2024).