Nababan, L., Nasution, M. F., Triwanda, E., Ginting, E., & Sinambela, L. (2026). Artificial Intelligence Based Expert System for Medical Services at Clinic Pratama Bertha Medan. Yumary: Jurnal Pengabdian Kepada Masyarakat, 6(4), 185–196. https://doi.org/10.35912/yumary.v6i4.6530