The Impact of Using Excel Functions on Payroll Tax Calculation: An Applied Study at the Northern Technical University. NTU journal for Administrative and Human Sciences (JAHS), [S. l.], v. 6, n. 1, p. 121–140, 2026. DOI: 10.56286/eswvnz96. Disponível em: https://journals.ntu.edu.iq/index.php/NTU-JMS/article/view/1775.. Acesso em: 5 apr. 2026.