S. S. Ranty, A. Stephanie, E. Mudjaddid, and A. F. Syam, “Endoscopic Retrograde Cholangiopancreatography followed by Laparoscopic Cholecystectomy versus Laparacosopic Cholecystectomy and Common Bile Duct Exploration in Concomitant Gallstone and Common Bile Duct Stone”, InaJGHE, vol. 17, no. 1, pp. 68–74, May 2016.