A. D., Oklo, Enenche D. E., and Mary - Ann Msoo Aondoakaa. 2020. “Heavy Metals in Some Lipstick Products Marketed in Makurdi Metropolis, Benue State Nigeria”. International Journal of Environment, Agriculture and Biotechnology 5 (2). https://journal-repository.com/index.php/ijeab/article/view/1768.