Joseph, D. S., A. J. Kavalakat, J. M. Mandumpala, and S. V. Mayyattil. “A Study to Compare RIPASA (Raja Isteri Pengiran Anak Saleha Appendicitis) and Alvarado Scores in Diagnosing Acute Appendicitis in Indian Population”. International Surgery Journal, vol. 5, no. 5, Apr. 2018, pp. 1826-30, doi:10.18203/2349-2902.isj20181591.