A. Boveiri Monji and H. Yousefnia and M. Haji Hosseini and S. Zolghadri, A Green Method for Selective Spectrophotometric Determination of Hafnium(IV) with Aqueous Extract of Ficus carica Tree Leaves. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. February 2018, vol. 135(3). 149 - 152 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/10008698.