Aziza, Atika, et al. “The Influence of Patient Numbers, Working Hours, and Length of Service on Hospital Nurses’ Fatigue Levels in the Inpatient Unit”. J-CEKI : Jurnal Cendekia Ilmiah, vol. 5, no. 3, Apr. 2026, pp. 2482-9, doi:10.56799/j-ceki.v5i3.14060.