WASET
Monji, A. , Yousefnia, H. , Hosseini, M. , Zolghadri, S.. "A Green Method for Selective Spectrophotometric Determination of Hafnium(IV) with Aqueous Extract of Ficus carica Tree Leaves". World Academy of Science, Engineering and Technology, Open Science Index 135, International Journal of Chemical and Molecular Engineering (2018), 12(3), 149 - 152.