Elewa, K. ., A. . Belal, O. . El Monayeri, and A. . Tawfic. “Metal Organic Framework for Removal of Cu (II) Ion from Aqueous Solution”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 59, no. 2, Aug. 2021, pp. 229-37, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12867.