“Theoretical Calculation of The Binding And Excitation Energies For 𝐍𝐢 𝟐𝟖 𝟓𝟖 30 Using Shell Model And Perturbation Theory”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 26, no. 3, Apr. 2017, pp. 225-3, https://jih.uobaghdad.edu.iq/index.php/j/article/view/431.