Lubis, Rianda Dwi Magfirah, Zulfendri Zulfendri, and Siti Khadijah. 2023. “Patient Safety Program for Oral Surgery Services at Hospital at Universitas Sumatra Utara ”. Randwick International of Social Science Journal 4 (3), 644-56. https://doi.org/10.47175/rissj.v4i3.767.