Zana Najm Abdullah Nasrallah, et al. “An Analytical Study to Improve the Efficiency of Waiting Lines in Government Institutions”. Bilangan : Jurnal Ilmiah Matematika, Kebumian Dan Angkasa, vol. 3, no. 1, Mar. 2025, pp. 139-57, doi:10.62383/bilangan.v3i1.429.