“Removal of Lead (II) from Polluted Seawater in Mukalla Coast, Hadhramout Using Biotechnology of Dried Biomass of Macroalgae, Gracilaria Sp and Sargassum Sp”. Hadhramout University Journal of Natural & Applied Sciences, vol. 18, no. 1, Nov. 2023, https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/103.