Mutono, A., P. Mutai, R. Ingwela, D. Moenga, and H. Chepkwony. “Analysis of Lead Content in Paints Used for Face Painting in Nairobi County”. The East and Central African Journal of Pharmaceutical Sciences, Vol. 22, no. 2, July 2019, pp. 57-61, https://uonjournals.uonbi.ac.ke/ojs/index.php/ecajps/article/view/244.