K. MHEEMEED, A.; احمد. Calculation of Energy Levels and The Reduced Transitions Probability For Even-Even Number of Isotones ( N=90). Journal of Education and Science (JES), [S. l.], v. 21, n. 4, p. 97–113, 2008. DOI: 10.33899/edusj.2008.56101. Disponível em: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18259. Acesso em: 4 aug. 2025.