Hero Akbar, Hafizd Komar, and Theodorus. 2020. “Predictor Factors of Difficult Laparoscopic Cholecystectomy in Cholelithiasis Patients in Dr. Mohammad Hoesin General Hospital Palembang”. Sriwijaya Journal of Surgery 3 (2), 106-14. https://doi.org/10.37275/sjs.v2i2.33.