Rachman, B. M., . I. G. B. A. . Hasriastawa, and A. Setiawan. “Diagnostic Accuracy of Hyponatremia As a Biomarker of Perforated Appendicitis in Pediatrics in Dr. Soetomo General Hospital, Surabaya”. Bali Medical Journal, vol. 12, no. 2, July 2023, pp. 2106-9, doi:10.15562/bmj.v12i2.4503.