Suralaga, Cholisah, et al. “The Effect of Perineal Massage on Perineal Rupture Incidence On Primipara Mothers’ Labor In Kasih Ibu Clinic In 2020”. STRADA Jurnal Ilmiah Kesehatan, vol. 10, no. 1, May 2021, pp. 883-90, doi:10.30994/sjik.v10i1.732.