S. Alhamda, Jon Efendi, and Budi Pratama Arnofyan, “Sodium Levels as a Predicting Factor for the Occurrence of Perforated Appendicitis in Children at Dr. M. Djamil General Hospital Padang”, Bioscmed, vol. 6, no. 9, pp. 2154–2158, Jun. 2022, doi: 10.37275/bsm.v6i9.571.