Nafai, H., G. Lamzougui, A. Bouhaouss, and R. Bchitou. “Study of Physico-Chemical Characteristics of Nickel Insertion in Phosphogypsum”. JOURNAL OF ADVANCES IN CHEMISTRY, vol. 12, no. 6, Nov. 2016, pp. 4134-8, doi:10.24297/jac.v12i6.4338.