Ibtisam Ali Al-Hallak, et al. “Determination of Selected Heavy Metal Concentrations in Various Types of Animal Feed in Tripoli, Libya”. Journal of Libyan Academy Bani Walid, vol. 2, no. 4, July 2026, pp. 109-31, https://journals.labjournal.ly/index.php/Jlabw/article/view/630.