Megadhana, I. W., I. G. S. Indrawan, I. N. H. Sanjaya, and M. B. D. Aryana. “The Prevalence and Characteristics of Perineal Rupture During Vaginal Delivery at Sanglah General Hospital and Regional Hospitals in Bali from January 2018 until December 2019 Period”. Bali Medical Journal, vol. 11, no. 1, Apr. 2022, pp. 356-9, doi:10.15562/bmj.v11i1.3067.