Frengky Prabowo, I. W. A., and P. M. G. A. . Putra. “Esophageal Achalasia Is Treated With Surgical Heller Cardiomyotomy and Dor Funduplication a Rare Case Report”. Jurnal Indonesia Sosial Sains, vol. 6, no. 11, Nov. 2025, pp. 3522-8, doi:10.59141/jiss.v6i11.2091.