Al Hariri, A., Y. K. Manea, and S. M. Qasem. “Highly Selective Removal of Toxic Metal Ions from Wastewater Using Yemeni Limestone As a Natural and Low-Priced Adsorbent: Behavior and Mechanism”. University of Aden Journal of Natural and Applied Sciences, vol. 28, no. 2, Apr. 2025, pp. 63-71, doi:10.47372/uajnas.2024.n2.a6.