Rehman, Mohammad Arifur, Md. Abu Hasan, Md. Abdus Salam, Abdus Salam, Nur-E-Alam Saddique, & A.M. Shafiqul Alam. "Betel-nut Peel as an Adsorbent in the Removal of Cd, Cr and Pb from Aqueous Solutions." Pakistan Journal of Analytical & Environmental Chemistry [Online], 13.2 (2012): 11. Web. 4 Mar. 2024