The Frequency of t-Practical Numbers. Iraqi Journal of Science, [S. l.], v. 61, n. 12, p. 3337–3341, 2020. DOI: 10.24996/ijs.2020.61.12.21. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2067.. Acesso em: 7 may. 2024.